Because unlike the OP suggests, he isn't actually wetting his pants but he's pulling off a clever illusion... and he can't magically change pants with a snap of the fingers.
If you don't write an answer the precludes myself from involuntarily urinating in my pants, I'll pester you till you disappear from AG. Exceptions apply.
OP is not good enough. If I removed the title, the point would be lost. Make better OPs, and preferably some that does not horribly humilate whoever decides to join in. This could most likely end up badly, which will be the second point to locking this thread.