offsides is a tough one. I was pretty good as soccer in high school and did some officiating in that time as well. Offsides is a really tough concept to explain to people and the way that the pros will do offsides "traps" makes it even more difficult for the layman to understand.

Mostly, even though it was the sport I sucked the least at as a youth, I just think any game where the final score can be and often is a 0-0 tie, isn't much fun to watch for an hour and a half.