Well yeah, I live in a dorm, so there are often voices in the distance.

Seriously though, just listening to your house when you're home alone can be very creepy. My computer speakers have an unfortunate problem of picking up radio every now and then, so sometimes I'll hear voices start talking out of no where, and until I realize what it is, it really freaks me out. Especially when it only lasts a few seconds and it sounds like something just yelled at me, cause it's usually pretty loud.
