It's probably a fake rumor but have you heard anything specific about it?
find a costume store still open somewhere
The same thing used to happen to my little brother. If it's the same thing my brother had it's go away as he gets older. My brother is 18 now and it hasn't happened to him in 2-3 years. There is actually a prescription you can take to prevent it from happening at night. It's a fairly commen problem, so i would look up the exact statistics of adolescents that have bed wetting problems and explain that he's not the only person it happens and shouldn't be ashamed because it's likely some one he knows has the same problem. best advice i know to give..
