Believe it or not, the one I rode around was tame as hell. _{[Could have just been that his trainer did a really good job, but Solid had been docile as a kitten.]}

... On the other hand, I wouldn't trust my Growlithe as far as I could throw him not to wreak total havoc if I evolved him.

_{[Not maliciously, mind. But YOU try describing an Arcanine merrily rolling around in someone's spilled shrimp scampi in the middle of a restaurant and knocking over half the tables in the process as anything but chaos.]}