Delivery Man actor Vince Vaughn says being very shy when he was younger led to him making many ''crazy'' decisions.
The 43-year-old actor, who has daughter Locklyn, three, and son Vernon, five months, with wife Kyla, admitted he hated how ''scared'' he always felt when he was a teenager.
Speaking to The Sun newspaper, Vaughn said: ''I wish I had not been so shy and scared as a kid. I did not want that feeling inside me - so I made some crazy decisions. It made me drive a car when I was under-age, at 14, and I tried to do too many things which brought pressure on myself.
''I would cut school and challenge the teachers as I over-compensated for my shyness."
He added: "I was also a big boy and I would get into fights as I would be picked on. I was not the toughest kid, but if there was trouble I would be expected to sort it out because of my height.
''Teachers wanted me to see the school psychiatrist at one point because I didn't have the same type of academic pursuits as the other kids. I never went.''
Vaughn further explained that he is still shy and likes to hide behind the characters he plays, stating: ''I do not like the focus to be on me. I am much more comfortable playing a character rather than getting such personal attention. I am bashful and shy in that way.''