To many times to count. and I hate it how you start shedding tears right after, and people think you're crying. I punched myself during PE while me and my friend were sun-tanning on the grass. I'm still wondering how I manged to do that.

only once ...but it was bleeding for over an hour...my nose not my punch

I actually haven't.. haha I feel weird for NOT doing it X) haha

Yeah.. it hurt :(