Most of us have probably played "I never" at some point. You state something you have not done and should your friends have done it, they either have to take a shot of some very hard liquor, or put a specified amount of money into the pot. Not this kind though

Though I guess you could incorporate that in there somehow if you wish.
For forum style, someone will state and "I/I've never..." and you must say if you have/have not done it, then it's your turn to state something. Here we go.
I've never downloaded or viewed porn at work/school.