Exercise has its hazards. Runners are sidelined by shinsplints, freestylists by swimmer's ear, and who hasn't heard of tennis elbow? But the fitness buff of the '90s has a far greater worry. StairMaster Butt.

I did freelance cartooning off and on from college graduation in 1991 through ABC News hiring me in 2003. I did a weekly comic strip for 'Roll Call' for about nine years. I sold cartoons and caricatures to 'The Los Angeles Times' and 'The Washington Post.' I drew as much as I could. It's really tough to make a living doing it.