Yes, those bad ghosts - they're so... bad, aren't they? What with their persistent 'woo' noises, their habit of moving your things around when you leave the room (incredibly painful), and their insistence that you avenge their untimely deaths. Anyway, there's a website dedicated to Bad Ghosts. Actually it's not about 'real' spectres, but all those ridiculous TV shows called 'Britain's Most Haunted Abbatoirs', and so forth. Quite light-hearted and cheerful, but scholarly too, as you'll see. The chap in charge has the right sceptical attitude to all things ectoplasmic.
Here's a clip of the debunkulator at work. Not particularly spooky. I mean, if a ghost were to balance a Challenger 2 main battle tank on its edge, the Madame Arcates might have a case. But a bottle? If it was a ghost I'd give it about three out of ten for spookiness.