Hey some pretty strange stuff happened while I was at my friends house that left us baffled, and one of us is a hardcore skeptic...anyway I'll wrote seperatly below the two incidences:
First my friend put a full bottle of tomato sauce on a shelf in a pantry, closed the door and about a minute later there was a loud bang. We opened the door and it had splattered on the floor as if it had been stood on/chuck down with heavy force. I came to this conclusion, that if it did fall down...it was about 4 feet off the floor I doubt it would have split, and if it had it wouldn't have splattered from that height.
The other thing was a CD litterally flew off the top of a speaker, it couldn't have been bass or wind because it was on two CD cases and they would have moved too. So I did a test and put the CD back and pushed it off with my hand and it travelled the same distance. This prooves that it was quite a force pushing it, any ideas?