Creepy Night

My choice of religion is Wicca and the only reason I state this is to explain what happened last night.  I had gone upstairs to get ready for bed when Tim asks me if I noticed something odd about our altar. I said no and he proceeded to tell me to look at the pentagram. I instantly get freaked out and tell him I would rather not because it was late and my mind was thinking all sorts of weird stuff that could be going on.  I get downstairs and find that our pentagram that has been placed the right way for days now is now upside down.  Freaked me out because I've never had a religious symbol be manipulated.  I turned it around the right way and we set some ground rules for any and all spirits present in our home that they are not allowed to touch the altar or they will be asked to leave. We will see how well this works.