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 typical male ejaculation can last for 4 to 6 seconds. This duration can vary hugely from men to men. Some men can even experience orgasms that can last upto 10 seconds and above.