Happy Tree Friend?

Hey, do any of you know the cartoon that called Happy Tree Friend? Well for those of you who know it very well then good for you but for people who don't know what it is, here is the explainment. It's a cartoon that at first it seem to be very cute and innocent but when it start you will be like o_o wt-, trust me I was like that when I first discover and watch the show. Oh! and my favorite characters are Pop the light brown bear with dark red hat, bathrobea and pipe which is a very silly father in my view, second is Flippy the green bear that wear solider uniform and I mean the good one.