Michael Karolchyk thinks you're fat and lazy... and dateless. Need proof? It's just a click away. For slideshow of ads: The bad boy of Denver's fitness scene wasn't always that way. In this progression of gym advertisements that ran in 5280 from 2004 to 2007, Michael Karolchyk goes from a trainer who can get you "the body you've always wanted" into the man who asks prospective clients if they're "getting it on with the lights on." The transformation is quick, dramatic and suggestive -- and turned his mom-and-pop shop into one of the most in-demand workout spots in the Mile High City.