> Testing Mobile Apps On Drunks
I've done this before. Not a mobile app but a unit of hardware that is at bars (think those digital jukeboxes). During the final stages of testing we mounted one at a friend's place and set it to debug mode (so anything with a magnetic strip passed as being a valid credit card).
After a few hours of drinking and watching friends we uncovered some interesting usability concerns. The only problem was we never designated someone as a sober-recorder so the notes were almost entirely useless.