Knees.

I never give much thought to my knees. Until now.
They HURT so much. This job is giving them a run for their money. I'm limping, how pathetic!
You don't really think about your knees, there just these ugly things connecting the top and bottom parts of your legs, its the place I have a scar from falling over into glass when I was an ickle little chicky. They take all the pressure of everything. Clever little things :)

Look at those beautiful knees!