This is my knee:
Sadly my camera did not pick up all the crazy shades of purple and green my knee is. This is because I did a backflip in jujitsu class-- not because I wanted to do a backflip, mind you, because I can't, but because someone swept both my legs very, very well.
...Well, actually, I landed on my neck, not my knee, but my knee was second. I am amazed I am in one piece and not injured! But I also HURT. And tomorrow I have to write 3-4 papers. Fuck.