On YouTube, there is a video in which a person claims their dog is interacting with a ghost. Reportedly, he leaves a camera on in the house, and catches the whole thing on tape. You can watch the whole video here, but afterwards, scroll down and watch the second video. This actually turns out to be kind of funny.
Wow. Really crazy, right? Watch this next video below, in which the first is completely debunked. Poor dog, caught in the middle of this. LOL.