I tore a muscle in my foot near my little toe. That Hurt like a bitch. For about 10 days I couldn't put any pressure on it at all, even my shoe touching it was agony.
I was feart to go to sleep as it would seize up during the night and the pain in the morning would make a stone cry.
Anyway, the only exercises I could do was core stuff like reverse crunches, and free weights.
And wanking.