Why don't dislikes prevent Sims from doing certain things?

Yeah, the likes and dislikes are affecting my Sims also. One of my Sims took a sudden dislike to the toilet paper holder in his bathroom, a base game object that is pretty generic, and would cancel everything in his queue just to go into the bathroom and have a fit because he thought it was hideous. I've been playing this Sim for weeks and this quirk just came out of nowhere. Then he began doing the same thing with his furniture. He'd drop everything to go and stand by the object then either applaud himself for having good taste or pitch a hissy fit because he hated it. I finally grew tired of trying to work with him on this by changing things, but nothing I did was ever good enough to suit him. So, I took away all his decor likes and that solved the problem. At the moment, that is the only category in the likes and dislikes that causes a reaction in my Sims. But it is amusing he disliked a simple toilet paper holder he had been using for weeks without reacting to it before now. :/