What can make a very good anime look bad in seconds?

[Blackangel]

for me that would be something close to rape, loli and too much taboo
what about you all? what can make you drop an anime based on something alone

 

[MoonlightShadow]

Put Sasuke on it and it will be instantly sour lol

 

[Kaname]

Some cliche will make anything lose it's place.
People don't like the same stuff in every anime and that includes me too. It's better to have unpredictable things.