Read somewhere that in Japan it's common for people to get to work wearing adult diapers, so they won't have to waste time going to toilets. But that's a bit different topic, I guess. :D
@EKons well if I was going to pee my pants in public and wouldn't want people to notice, I'd do it slowly, while sitting, and only small amount. So having full power is bad idea... leaking bit by bit would be the way to go. No? :D