Disturbing but true....
In a Cubs game, one of their star pitchers was on the mound. After a play, he bent over, looking as if he had just pulled his groin. Mark Grace, now a former Cub, went to the mound to see if everything was alright. The pitcher said that he had an erection. Mark replies, in a laughing manner, "Wow! You must really 'love' pitching."