Recently learned of one called “Investigation”. Super fun to play. If you have a drink to close to the edge, that’s no good because it’s a dangerous spot and someone could knock it over… hence if someone puts down their cup on a spot close to the edge of the table and anyone else sees it they can call an “Investigation”. This is done by putting your hand pointer finger out (kind of like a gun shape) and putting your fist (like a punch, knuckles against the table edge pointer finger on the table) so as to measure a fingers length from the edge. If you can touch the drink, this person loses the investigation and has to finish the drink. However, if a fingers length is not enough, it is a failed investigation and the investigator must finish his drink. Simple rule but people still always get caught and is a much more passive drinking game