Home ยป How could one prevent drunk users from using a mobile application?

How could one prevent drunk users from using a mobile application?

Solutons:


I think you should test users “motor coordination” & reflexes. After all, that’s what traffic police does when he stops you.

Some sort of game where the user needs to quickly burst some randomly appearing bubbles (= reflex test) and draw straight lines (= motor coordination test) on the screen comes to my mind.

EDIT

Alcohol impairment is also characterized by poor perception of
time…have them hit a button in 10 seconds with no timer or
something.

Btw, I am willing to test your solution for free provided that you pay for my booze ๐Ÿ™‚

Other than a silly novelty thing (e.g., the gmail labs “mail goggles”) or requiring a breathalyzer attachment to activate (e.g., your application starts automobiles for people with past DUIs), its not worth it.

Assuming your application is useful and people will want to use it while both drunk and sober, any barriers that could differentiate the ability of some moderately drunk person and a sober person will filter out a lot of sober people. Requiring fine motor tests or math/memory questions will let lots of drunkards through and frustrate a lot of sober users, especially if the user is in a rush, commuting, or multitasking.

For example, I primarily use mobile devices mostly while commuting on the subway. I won’t be able to trace a line easily as I’m standing on a moving train with people bumping into me; or it may take extra time to type in math answers with one hand holding the device and the other switching back between holding a pole and typing on the device.

Most of the time when one is moderately drunk (BAC ~ 0.10), you can temporarily focus to pass these sorts of tests if they try. A college friend would always try doing difficult math while drunk (e.g., advanced calculus and do it correctly) and then shortly after pass out or vomit.

How do we know when to test if the user drunk?

An app that requires a test before you can use it at start up will be so frustrating you’ll stop using it immediately, well intentioned or not. A schedule system would allow users to specify when they wish to be tested (e.g. I might be drunk after 8 PM on fridays and saturdays). Most importantly, this could allow you to have an app that blocks other apps based on a schedule; rather than building this feature into a single app, one could have an app that blocks texting, email or calls, rather than requiring the user to use your proprietary app. (this has implementation due to access rights, but is a possible feature)

How do we know you’re drunk?

Speech recognition is an advanced possiblity. Computer analysis is now possible which can detect slurred speech. This will likely work for a majority of users, but it’s important to consider users may be mute or may be using their phone where speaking aloud would be inappropriate; while a nice feature it should not be the only way to test drunken users.

The easy software solution would be an integrated breathalyzer; this of course requires specialized hardware, but isn’t completely infeasable; these devices are cheap and could be a peripheral or built into a handset from the get go.

Barring speech recognition and specialized hardware, a motor skill and or reaction time test is the common solution; alcohol significantly impairs task performance. Allow a user to set a baseline performance (to accommodate users with better or worse motor control/reaction times than typical) and give them a test. Common motor skill tests could be simple commands like “tap here” on a touch enabled device or a typing test.

Asking a user to set a “drunk baseline” would be a very bad idea; never encourage irresponsible behavior.

What do we do if they’re drunk?

Give the user several tries to retry. I would hesitate to ever implement a “lockout” that prevents future tries. You could leave a lockout or timeout feature as a configurable option; users with poor motor skills will want it off, but, ahem, “power users” of alcohol might want the extra security a lockout provides.

Related Solutions

Extract file from docker image?

You can extract files from an image with the following commands: docker create $image # returns container ID docker cp $container_id:$source_path $destination_path docker rm $container_id According to the docker create documentation, this doesn't run the...

Transfer files using scp: permission denied

Your commands are trying to put the new Document to the root (/) of your machine. What you want to do is to transfer them to your home directory (since you have no permissions to write to /). If path to your home is something like /home/erez try the following:...

What’s the purpose of DH Parameters?

What exactly is the purpose of these DH Parameters? These parameters define how OpenSSL performs the Diffie-Hellman (DH) key-exchange. As you stated correctly they include a field prime p and a generator g. The purpose of the availability to customize these...

How to rsync multiple source folders

You can pass multiple source arguments. rsync -a /etc/fstab /home/user/download bkp This creates bkp/fstab and bkp/download, like the separate commands you gave. It may be desirable to preserve the source structure instead. To do this, use / as the source and...

Benefits of Structured Logging vs basic logging

There are two fundamental advances with the structured approach that can't be emulated using text logs without (sometimes extreme levels of) additional effort. Event Types When you write two events with log4net like: log.Debug("Disk quota {0} exceeded by user...

Interfaces vs Types in TypeScript

2019 Update The current answers and the official documentation are outdated. And for those new to TypeScript, the terminology used isn't clear without examples. Below is a list of up-to-date differences. 1. Objects / Functions Both can be used to describe the...

Get total as you type with added column (append) using jQuery

One issue if that the newly-added column id's are missing the id number. If you look at the id, it only shows "price-", when it should probably be "price-2-1", since the original ones are "price-1", and the original ones should probably be something like...

Determining if a file is a hard link or symbolic link?

Jim's answer explains how to test for a symlink: by using test's -L test. But testing for a "hard link" is, well, strictly speaking not what you want. Hard links work because of how Unix handles files: each file is represented by a single inode. Then a single...

How to restrict a Google search to results of a specific language?

You can do that using the advanced search options: http://www.googleguide.com/sharpening_queries.html I also found this, which might work for you: http://www.searchenginejournal.com/how-to-see-google-search-results-for-other-locations/25203/ Just wanted to add...

Random map generation

Among the many other related questions on the site, there's an often linked article for map generation: Polygonal Map Generation for Games you can glean some good strategies from that article, but it can't really be used as is. While not a tutorial, there's an...

How to prettyprint a JSON file?

The json module already implements some basic pretty printing in the dump and dumps functions, with the indent parameter that specifies how many spaces to indent by: >>> import json >>> >>> your_json = '["foo", {"bar":["baz", null,...

How can I avoid the battery charging when connected via USB?

I have an Android 4.0.3 phone without root access so can't test any of this but let me point you to /sys/class/power_supply/battery/ which gives some info/control over charging issues. In particular there is charging_enabled which gives the current state (0 not...

How to transform given dataset in python? [closed]

From your expected result, it appears that each "group" is based on contiguous id values. For this, you can use the compare-cumsum-groupby pattern, and then use agg to get the min and max values. # Sample data. df = pd.DataFrame( {'id': [1, 2, 2, 2, 2, 2, 1, 1,...

Output of the following C++ Program [closed]

It works exactly like this non-recursive translation: int func_0() { return 2; } int func_1() { return 3; } int func_2() { return func_1() + func_0(); } // Returns 3 + 2 = 5 int func_3() { return func_2() + func_1(); } // Returns 5 + 3 = 8 int func_4() { return...

Making a circle out of . (periods) [closed]

Here's the maths and even an example program in C: http://pixwiki.bafsoft.com/mags/5/articles/circle/sincos.htm (link no longer exists). And position: absolute, left and top will let you draw: http://www.w3.org/TR/CSS2/visuren.html#choose-position Any further...

Should I use a code converter (Python to C++)?

Generally it's an awful way to write code, and does not guarantee that it will be any faster. Things which are simple and fast in one language can be complex and slow in another. You're better off either learning how to write fast Python code or learning C++...

tkinter: cannot concatenate ‘str’ and ‘float’ objects

This one line is more than enough to cause the problem: text="แƒ แƒ”แƒ’แƒฃแƒšแƒแƒ แƒ˜ >> "+2.23+ 'GEL' 2.23 is a floating-point value; 'GEL' is a string. What does it mean to add an arithmetic value and a string of letters? If you want the string label 'แƒ แƒ”แƒ’แƒฃแƒšแƒแƒ แƒ˜...