I forgot to mention, that I was allowed to watch some 18's before I was 18, the first Die Hards, as they where made ages ago, and for example Bad Boys 2 has more swearing / blood in than Die Hard which was a 18 at the time.
I personally think 4 years old is too young to be on games consoles...maybe not DS's and Game Boys as they are different.
And Dave, I'm guessing thats because your 18 and know the difference between right and wrong

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Its kinda linked, but when I'm driving if when I've got Slipknot in my CD player (Which I do at the moment) I get pissed of real quickly, someone gets the tinyist bit too close and I slow right down to piss them off, however, if I'm listening to the radio or Cascada (Only album I own that isn't metal/rock >.>) I drive completely differently.