Sometimes I wish I could zone out, but I'm the other way.
Can listen into several conversations, especially on trains, planes or in shops. Put it down to working in open plan offices.
Currently wish I could switch off, as have noisy neighbours living above me. He's deaf and takes hearing aid out when he gets home, so turns television up. The other evening, had to turn volume of my tv up to max to drown out sound from his. He's currently on paternity leave; how their newborn manages to sleep above this noise beats me!!!