Why is my floor wet?

[Sindawe]

I could tell you the story about the housemate's friend. Or the other story about the other housemate's friend. But you have trouble sleeping as it is.

One (or more) of these "friends" would'nt have been named Dean, would they?

[Mabs2]

It's ghost pee. It should disappear after a while.

That's exactly what I was getting at.

[Desertdog]

I will go with it having to do with the HVAC if you have one.  
Where I worked we had a lot of trouble with wet floors when the humidity was high.  The drains were bad and did not have enough  capacity to handle high humidituy but worked fine with low/normal humity.

[crt360]

Set up the videocam in nightvision mode.  See if you can record some unruly apparitions messing up your place.

[280plus]

You know, you talk about the roomate from hell. I DID live with a pisser for about a month many years ago. That guy was a whole story by himself.

[Maser]

*UPDATE*


Well, I went around underneath my house earlier to inspect the pipes.  Got all dirty and covered in spiderwebs.  I actually went the entire length of the pipes that run under my room and didn't find one single leak in any of the pipes.  Now I am sure there is a joker in the house.