I usually don't really ship that much, with the exception of queer baiting shows (like free! or bbc's Merlin, since the market of these shows is to "make them gay but have the backdoor like lol they not gay so prejudiced people can still enjoy it"). If the canonical relationship is shit, I just don't care about it and would rather have the characters go their own way than ship them with someone else. This depends on character chemistry as well. If two actors/actresses have really good on screen chemistry I might end up shipping them. This hardly ever happens, though.
