Out of the however many anime I've seen I've only dropped 8. I like to finish things I've started... even if it'll sit on-hold for a long long time.
~ D.Gray-man
I heard that it ended on a note where if you wanted to find out the rest of the story you had to read the manga. True or not I dropped it pretty much right then.
~ Kiba and Spiral
These sat on my "On-Hold" list for years before I just said "Forget it, I'll drop it".
~ Kiss x Sis, Sengoku Collection, and Usagi Drop
I started these thinking I wouldn't like them, and sure enough. Kiss x Sis was... stupid. Sengoku Collection is boring, and Usagi Drop is not my type of anime.
~ Yumekui Merry
I put this one on the back burner, then found out the ending was blah, so I dropped out.
~ Sankarea
I don't know what it is about this show... but it makes me sick... not the "ewww" sick, but it makes me queasy. I wanted to watch the show, but I just can't do it.