When I was at Auburn, Mel Blanc came to speak. The guy was awesome and talked about how they purposely slipped in some adult themes to a lot of their cartoons. He also talked about how violent most of their cartoons really were and showed a few examples, including one where Yosemite Sam was trying to take over a fort/castle from Bugs.
I've got a 10 year old and all the cartoons now are that Japanese shit, Naruto....hugio....Mashiki something or other.