[Ingtar]

The panic system I helped install in a small grocery years ago was amusing. The windows and doors, barred of course, locked. The catch on the shotgun under the counter released. The best part was the door to the yard where the two trained attack dogs lived was quietly opened and a high pitched signal was broadcast to the dogs.

[JimRed]

The best part was the door to the yard where the two trained attack dogs lived was quietly opened and a high pitched signal was broadcast to the dogs.

Not good. The dogs have no way of knowing which humans are the criminals and which were just shopping. A well trained clerk with a shotgun, on the other hand...