What is the most traumatizing fucked up Anime you ever saw

The only scene I can think of which I didn't care for was Fate/Zero. The way Caster killed the first child, such a brutal death for a child!!! And I've seen Another but the kids in this one look younger and the WAY they are killed!!!

corspe party, never got to finish it because it was just.......no school days wasnt that bad, interesting ending though and despised main character

The only thing i've ever seen that made me feel horribly uncomfortable was Nina's fate in FMA. I'm sure i'm not alone here.

Corspe Party, School Days (the last ep though. Satisfaction), Kodomo no Jikan, Boku no Pico (only watch when drunk... you'll have some good laughs), ... there are probably more. On a side note I actually loved Elfenlied.

I forgot the name but some kinda ''ponytail'' anime , the pervert guy love seeing pretty girls with cute different styles of ponytail then he become one (a girly ponytail ) and super hero of ponytail fucking sh*t .corpse party for me is not bad at all it's fun when they kill the students specially the one who smashed on the wall. Lol XD

"I forgot the name but some kinda ''ponytail'' anime , the pervert guy love seeing pretty girls with cute different styles of ponytail then he become one (a girly ponytail ) and super hero of ponytail fucking sh*t" You're thinking of Ore Twintails ni Narimasu: http://myanimelist.net/anime/24705/Ore_Twintails_ni_Narimasu. Crappy anime but great for twintail fetishists and it's just a dumb comedy that makes fun of itself. Really over the top.

The anime "another" was pretty brutal at times, very anime final destination-esque http://myanimelist.net/anime/11111/Another But I still enjoyed watching it.