Tennis the menace
My friend and I had this tennis tournament for school one day. We were playing these other two girls from a different school and we really wanted to win. When one of the girls hit the ball to me, I thought, "OMG! This is the perfect shot! We're so going to get this point!" With as much power as I could muster, I swung my racket at the ball. But with my luck I completely missed the ball entirely and ended up smacking myself in the head (ouch!) with my own racket. It was embarrassing, but me and my friend laughed so hard!