I have been a little ruff on a few of my cheaper cues, but not too bad. I have several expensive cues in which I'm very careful with. As for golf clubs, I've snapped several shafts before, but only a couple on porpose. Moral of the story is that golf can be more frustrating than pool and golf clubs are cheaper than custom cues.
I had a buddy ruin a club, but the worst is when he took one to the golf cart, knocked a fender clean off and he had to pay to fix it. Think he had to fix it himself actually in addition to paying for the part.
Sometimes I'm glad I never got into golf.