An all black kitten adopted us (showed up at our doorstep crying pitifully), and my husband didn't want to keep it. I asked why, and he said "It's black." After pressing, it came down to thinking black cats were bad luck. Well Snit (that's the cat's name) is still here, and I haven't noticed any bad luck.
So yeah, I married one of THOSE people. But Snit is teaching him everyday that his silly worries about bad luck were totally unfounded. And DH even said that Snit is "cute"! Progress!!
ETA: I realize that this thread is about dogs, but I saw cats mentioned and wanted to address that. I think all dogs and cats are beautiful...well maybe not those ugliest dog contestants. lol But they all deserve love!!