Yeah, people can be surprised by recoil. And it doesn't always work how you'd expect; I would far rather shoot .45 than 9mm, because I find 9mm tiring. And this is from someone who likes the kick of a Lee-Enfield more than the kick of, say, a Mini-14. And the first time I shot .454 Casull, I loved it. I'd rather shoot .357 Magnum than .38 Special.