I'm thinking space aliens.

Hello loyal readers. I've been a bit under the weather so I've dropped the ball on updating my posts. But I'm better now and here we go.

Ann Arbor, Mich (AP)
   A hot tub mysteriously appeared on the roof of a University of Michigan building. Folks noticed people visiting the hot tub on Saturday. However, by the following Monday night, the hot tub disappeared. I'm thinking space aliens or the hot tub had slipped over from another dimension. Hope no one was in the tub went it slipped back.
Protect your bath-room,
Rodger ;-)