[video]
Hm...there's the alphabet one. You have to come up with a list of animals in alphabetical order and if you miss a letter, you take a drink. Or the speak by omission where you dare each other not to use certain words or sounds when you speak and if you can't, you have to take a drink. And there's truth or dare.
[Oh the things he and Conrad got up to when they were young. Too bad Conrad could be a stick in the mud even back then.]