Potty Tunes

Our latest encounter has been more funny than frightening. We have a one-year-old grandson that received a potty chair as a birthday present. This chair plays music when used, apparently to encourage the child. Well for the past few weeks. This chair, (Which sits in our bathroom) goes off all by itself. At random times during the day, we hear it playing.My husband and son both have tried to figure out what is causing this. And there is no simple explanation.So we all get an amusing chuckle each time we hear the chair start playing on its own.(The only time this wasn't so funny, is when I was in the shower, with soap on my face, eyes closed, and the chair starts playing. It kind of gave me a jolt. And a feeling that I wasn't alone.) A new point to ponder.....do spirits use potty chairs? Or, do they just like the music? LOL