Is your house haunted too?

At our church Halloween party, all of the kids received a great "pumpkin" balloon filled with Helium. Ben and Maddie loved the balloon and had a hard time sharing. After about a week, the balloon lost most of its helium to the point that it hovers in the middle of the air. The balloon now seems to have a mind of its own. During dinner time, the balloon floated into the dining room to check on us and then turned around and left the room. Ben thought it was hilarious. A while later we found the balloon in one of the upstairs bathrooms hovering over the toilet. We cannot imagine how it made it all the way up the stairs, down the hall, and around the corner into the Bathroom. It must have a mind of its own. We never know where it will turn up next.