I usually drop anime if they are too crappy, you guys should do the same. It makes no sense to watch an anime which you can't stand. Anyway, the worst anime I've ever watched is probably Fruits Basket. I didn't like that "be friendly and everything will work out" story at all. I actually don't even know why I watched the anime. I read the manga before and didn't like it either. But well, I gave it 6/10 so it's not really that bad, at least the humor was great.