Two professional athletes were talking about the number of athletes that had been caught on steriods. One of them had his young son with him, who, misinterpreting the word 'steroids', interjected, "It could have killed them -- they couldn't breathe -- my teacher said there's no air on 'steroids."

"Well, son," the dad responded, realizing his son's misunderstanding, "you're speaking of asteroids. However, whether it were asteroids coming at me or the fear of being caught for using steroids, I expect I'd be holding my breath, too."