Hopscotch

So I went to the doctor and explained I hurt my knee playing hopscotch, and he told me that as long as it didn't swell up (it didn't) or lock when I bent it (it doesn't) I just had some bruised cartilage and it would get better by itself.

I asked if there was anything I should be doing to help it heal.

And he said, "Don't play hopscotch."