Oh, I forgot to add: I think there's only two schools of chiropractic in Canada. But there are doctors who are quite rough (snap-you-in-half experience) and some who stretch you out gently before they adjust. Mine also won't adjust me if my body won't cooperate. Sometimes I'm stiff, even after stretching. He just says "That's all I can do today" and adjusts what he can. It definately depends on who you get.