Two women shared lodging on Baker Street in London. One owned a pet daschund, who, one day, went missing. The women searched but could not find the dog, and it appears that the animal was presumed dead.
However, for several weeks after the disappearance, the dog was seen wandering Baker Street, apparently the dogs spirit was no resting easy.
Commentary: Okay, this has got to be my candidate for the most pitiful excuse for a ghost story ever. I wouldn't have bothered to include it, except for the fact that I personally find it hilarious that anyone would bother to consider this a ghost story at all. I could only find one reference for it, the, ahem, august Paranormal Database, and I am surprised that it even showed up there.
This is a ghost story? Really? Really?
Okay, so many ghost stories can be explained by anyone with a knowledge of sleep physiology, or how our brains visual centers work, or carefully examination of the physical environment. But this particular story requires absolutely no special knowledge or investigation.
If a dog disappears, and then is seen for a few weeks thereafter in the general vicinity of where it vanished, then why immediately assume that it's a ghost dog and not, oh, I don't know, maybe the real dog wandering around the neighborhood wondering where the fuck precisely it's owner is? I mean, as far as alternate explanations go, this is a pretty easy one.
Sources: Paranormal Database