I have a little black wiener dog that bolted on me when she was 9 mths old. I live near chinook centre and she is so dark, once she made it down the alley she was virtually invisible. I looked for her for 3 hours and eventually had to give up. I got a call on my cell phone at 4 in the morning from a security guard at Chinook centre that she was found shivering in a corner of the parkade.
I learned a few things from this:
1) never leave your dog off leash after dark.
2) always put your cell phone number on your dogs tags,
3) All security guards are not complete ######s.
Molly has never wandered more than 50 feet from my side since the incident.