Won't have one. Won't carry one. Years ago use to carry one on my key ring. Popped open in my pocket. Fell and landed on aforementioned pocket. buried about half the blade in my leg. After removal massed the blasted thing into a wad. never carried one again and still won't.

Besides most of my pocket knives have better can openers on them. So why carry another one. Other than as a status symbol of being in the club.