Well, I don't know about that, they're actually kind of squishy .
If I know I'm well equipped, and I know the area well, that kind of thing is more of a thrill and a challenge to me than a scary experience. I know I can take whatever those conditions can dish out, so I just relax and have fun. Losing your cool in situations like that, or getting freaked out, is the worst thing you can do.
With regard to getting hurt on the rocks, 7-14mm of neoprene is great padding Also, with some experience you learn how to not fight the waves, but try to use them to your advantage as much as possible. My rod and reel take a beating though....