Kerwin learned not to do this the hard way -- he served in the Air Force special ops for four years and tried the angry drill instructor persona when he first started teaching boot camp. He quickly realized that wasn't going over well. "The average person doesn't want to get yelled at," he says. He does, however, have clients who address him as "Major," and he sometimes makes them run while singing the cadences he learned in the military.
Old dogs, new tricks
Boot camps have become such an indelible part of the fitness culture, having proved their get-you-into-shape-fast effectiveness over the last decade or so, they've spawned a host of variations. Beach boot camps take advantage of the sand and water; bridal boot camps help brides fit into their gowns. Some are geared toward women, children or seniors, and others are sports-specific. Each location and instructor brings a different environment or atmosphere.
At Thank Dog Bootcamp, people work out with their dogs, which not only get exercise but behavior training as well. "You're not only doing it for you, you're also doing it for your dog," says Jamie Bowers, who co-founded the Burbank-based program with her twin sister last year (classes are also held in Long Beach, Orange County and Northern California). "It also gets everything done in one hour. Everyone's busy, and people don't want to work all day and come home and train their dogs."