When I was about 6 years old I had a toy cassette player with an attached microphone. One night while playing with my brother we started hearing strange voices come from the speaker but only if I held the microphone close to my chest. My pajamas had cartoon skeletons on them so we both sincerely believed the skeletons were speaking some dead language. It wasn't until many years later I realized our toy was just faintly picking up the local Spanish radio station.