no one home (or is there)?

Or is there?

The wandering hobo approaches a house but the lights are off and no one is heard inside. The hobo can't help but shake the feeling that someone is watching from inside. The gentle whirring of a camera servo is barely detectable as the hobo waits in the darkening dusk light.

About the symbol/marker: fragmentation/stress; surveillance; no one is home, just kidding - someone is home.