At what age did you play your first M rated game?

[JoeTheBro]

My brother rented one when I was around 10. I played a bit of that. Halo 2 would have been the first one I really played though. I think I was 13 for that one.

Not all Ms are the same though. My first time really doing GTA was actually with the 4th one. Kids shouldn't be playing these games.