Mekanism president and CEO Jason Harris talks about sparring in the boxing ring—for charity at first—which evolved into his preferred workout after a long day at the office. "It was terrifying. You don't really know until you go in there for your first sparring match how you're going to take a punch," Harris says. "And then you kind of get into it, and you enjoy getting hit after a while, which is a really weird thing to say." He also weighs in on growing up near Washington, D.C., what it was like knowing he wanted to be in advertising from a young age and why David Bowie is the greatest musician of all time.