Writing in the Accident Analysis and Prevention journal, a team from Tampere Institute of Technology reveals the results of a study in which 6000 people were asked if they had actually had any kind of accident - or had nearly had an accident - while using a mobile.
  yes. they are called wet dreams. when a man sleeps hes usually dreams about sex, so when you have sex you ejaculate in there dream they are having sex.
What are wet dreams? A wet dream is when you ejaculate while you're asleep. Ejaculate means to release semen (the fluid that contains sperm) from your penis. Usually, a wet dream happens while you're having a dream about sex. You may not even remember the dream. You don't have to masturbate to have a wet dream. You can ejaculate without touching your penis. What causes wet dreams? When you go through puberty, your body starts producing the male hormone testosterone.