Some character study

I have been looking for some interesting examples of violent animation comedy for my 'Odd Couple' project, I looked at a few examples of Tom and Jerry which seemed to fit in rather nicely apart from the fact that there is never any standoff in my animation. I did however come across some pretty interesting but also rather 'disturbing' dark comedy on my search - some short animations titled ' happy tree friends'. at first I thought it was a children's cartoon but something in the back of my head told me that I had heard the name before.

I have posted a few below for anyone who is interested in watching - please be aware though that you may not enjoy the content or even find it remotely funny.