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.
A wet dream occurs when you have a sexually arousing dream during sleep, and your body releases semen through ejaculation. During the REM (rapid eye movement) phase of sleep, itâs natural for guys to experience an erection. If you happen to have an arousing dream during this period of sleep, you will sometimes ejaculate. You may have trouble remembering the dream or feel confused just after you have a wet dream. Some guys wake up because they feel like they are going to wet the bed.