Irony:
Buying a fifty dollar webcam to stop someones stealing a few bucks worth of chocolate....
But seriously, why didn't you just call a general flat "meeting" and say "someone's nicking my chocolate and it's not on."? I thought people living together could kind of, you know, be honest with each other? Like you said, he took it rather well, I don't see the need to set up a bleedin' camera on him.
However... PWNED.
