If bruises looked like the things that caused them,

I'd have four new lime green, fuzzy bruises on my body! Last week I got hit in the mouth with a tennis ball. As if that wasn't bad enough... tonight I got hit in the head (twice) on the back (once) and on the arm (once). I also had several near misses. Very near misses. Like, "duck and cover" near misses. So I ask this--- is it that I'm a bad tennis player that I can't hit the ball? Or does it mean that the people that I play with--the ones hitting me with the balls-- are bad at tennis?