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.
Nothing much happens. Sperm are produced in the testes. They are stored for a few weeks, and if they are not discharged, they die and are re-absorbed into the body. The testes are constantly making new sperm to replace the old. If a man has not had sex for a while, he will ejaculate more-but not by much. A man in his 20s produces no more than one or two teaspoonfuls of ejaculate each time he orgasms.