Don't worry. I came from the furry fandom. If there's one thing I know how to do, its brain-bleaching away the things that can't be unseen.
I haven't really ventured very far into DeviantArt, so I'll have to give that a look-see.
1.)
To Play: Soccer. It's one of the only sports I'm good at.
To watch: Football. I still don't watch it often, or even watch the entire game unless we make the playoffs, but it's still fun.
To watch only for the purpose of trying to figure out what the hay the rules are: Rugby. That game really confuses me.
2.)
Semicolon, the programmer's best friend and worst enemy, all wrapped up in one.
3.)
Stop blaming yourself for everything. I should probably start listening to it...
4.) Approximently 10^26 atoms. Mostly done via estimation based on the amount of Hydrogen atoms.