Bathroom Bandit???

I've been taking care of Mom's house for the past few days while she enjoys a road trip with friends. This morning I went by at 7:30 to check on everything. The door handle had almost been pulled completely off the door and the house was unlocked. As I walked through the house to see what had been taken I was amazed to find that all valuables were untouched. However, there was one thing...the fan in the guest bathroom was on. It was like someone broke in to use the toilet and forgot to turn the fan off before leaving. Soooo weird.