This story may be made up but on the other hand it may be true.

A gentleman shooter had a much loved spaniel which was a little enthusiastic running forward into the drive at the sound of the first shot. The embarrassed gun was of the habit of pricking his dog with a cartridge loaded with salt to bring him rapidly back to heal. Till the day a guest was on the peg next to him. On seeing the neighbouring gun shoot at his misbehaving dog and apparently missing, proceeded to finish the job off with both barrels from his own gun!

I think the moral of the tale is dont mess about with guns use them for the job they were intended and make sure you never point or fire them at anything you dont intend to kill.