Sousveillance:
Window sill pigeon
Sousveillance:
Friendly pigeon
Sousveillance:
Allen Tel Products armored courtesy phone
Sousveillance:
Disused automatic flusher control
Sousveillance:
Awkward bathroom mirror
Sousveillance:
Alternating rectangle bathroom tiles
Sousveillance:
Bolted locked access to utilities