A man came to doctor saying he has troubles with pissing his bed in the sleep.

• Everytime in my dream a midget comes and says "let's pee together". Then we pee and I wake up in wet bed.
• Well, next time when midget comes, say you've already peed. - doctor recommended.

Next night, the man is sleeping and seeing the midget again.

• Let's pee. - said the migdet.
• I've already peed.
• Alright, let poo then.