I had this problem until one of my fingers was cut off in an "accident". Now i can't even look at my hands without gaging abit.(the accident still haunts me)
eww my b/f does this crap and it is so gross so i decided when i knew my nails were clean i would intentionally bite them and crap to make fun of him and it pissed him off so much that he doesnt do it anymore.
Never seems to quite work right.