Oregon Trail!!! since I went to school up here in Oregon I thought only we had to play that shit every single day if we got our work done!
The best was when you got to rivers, you could pay a toll, 'ford' the rivers, or 'caulk and float' your wagon. We would yell "CAULK and Float!!!!" and say "COCK" really loud, and when the teacher would get mad we couldn't get in trouble because we were just reading... Ah, 4th grade humour!