Being scarred for life is a sign of mental weakness, in my opinion, I just ignore the things that I see and move on.
Meatspin at the age of 8, dismemberment at the age of 9, gore at the age of 9, child research (the worst one in my opinion) at the age of 11, scat research at the age of 13 and, just recently, a picture on 4chan of a guys snake stuck up a cats arse, I understood every single one of the things fully no matter how young I was at the time.
Not included in this are many other things I've seen that are even more petty