One time a old broken coca-cola music box had been sitting on top of our fridge for 3 years. As we were eating breakfast one day it just started playing. And when we let our dog outside we always locked the door. Well, we were eating dinner in the living room and nobody had left. Suddenly, our dog just waltzed in there and we checked the door to outside and it was still locked. Ha ha, we called our poltergeist Freddy.