Um... at the very least he could have read Phil Berman's "Catamaran Sailing: From Start to Finish" before deciding he could handle anything that came up on a cat.

I used to capsize my boat on purpose for the practice of righting it. Last time (not on purpose) I had only one other person on board and she had never been sailing before. It had been perhaps 2.5 years since I'd capsized last (I sail pretty conservatively when I sail and 18' boat solo!) and we still had no trouble bringing the boat back up