Of course, but its cartoons. The old Bugs bunny cartoons where pretty violent too. They know the violence is not real, but the words are. And thanks for your concerns, I am not over protecting them. There is enough vulgarity in this world without them having it at home as well. Maybe I'm old fashioned but I don't really think the "s" word is necessarily appropriate for an 8 year old. Chances are he wont understand half of what's going on anyway, but he can read.
I am 37 and don't use such language. Not trying to get in a debate about parenting, but thanks for the advice nonetheless.