Slightly off topic I know but this post did remind me of a time years ago when I was camping with family. A caravan was pitched up a short distance away, they'd put up the lovely new awning and decided it was a good idea to go off for a few hours leaving their dog in the awning and tethered by a long leadto the caravan leg. They had also closed the awning curtains so the dog could not see beyond the inside. Naturally, children were playing and people were walking other dogs, all of which this dog could hear but not see. After a considerable period of barking and yapping the dog ripped one panel of the awning to shreds. The awning was ruined by the time the owners returned to find the dog, laid quietly watching the world go by.