I blew a tire on hooked rims last week. User error, in my case: almost certainly trapped a bit of the tube under the tire. Over the course of half an hour, the tube ever so slowly pushed the bead up the rim, until the tire bead went over the rim and -- BLAM!
So don't do that. Make sure you've got the tube completely inside the tire, and the tire is evenly mounted all the way around the rim on both sides.