In episode 2 of Total Drama All Stars (Spoilers for those who haven't seen it yet) Sam got stung by a jellyfish and as Mike pointed out the only cure for a Jellyfish sting is to urinate on it which Sam did.

However looking up treatment for jellyfish stings this article outrights states that urine will not help any more then other forms of treatment.

Yes I know the show isn't exactly realistic with injuries (just look at what happened to Tyler in World Tour before he was voted off) but all the same that kind of information could be dangerous if anyone attempts it in real life.

Hopefully no one will actually think to do something like that in real life. Another reminder that you shouldn't trust everything you see on t.v.