When he was 16 or so, DS2 took our dog for walk quite often. One night, when they had been gone half an hour or so we were surprised to find the dog outside the front door, minus collar and lead. Thinking this was going to be a 'lassie' moment and that the dog was going to lead us to our son, we were wondering what the best course of action might be when in walked DS2 with collar and lead but no dog and in a bit of a panic.
It turned out that his 'walk' with the dog involved going to the pub and leaving the dog tied up outside. The dog, a bassett, obviously got cheesed off with that, took her life in her paws nd came home!!