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.
Many males occasionally, wake up in the middle of the night with wet sheets and underpants. When this happens, they are probably experiencing something called nocturnal emissions, or wet dreams.. A nocturnal emission is an involuntary ejaculation of semen that occurs during sleep.