One time me and my wife were invited to her friends house for dinner. The dining room has a large patio window door. Imagine our shock while at the dinner table when one of their pit bulls lunged at the patio window with a loud thud and barking. We were scared to death! Her husband said "relax, he won't come through it, he stays in the yard.". Next time we came over, there was plywood in place of the patio window. He grinned "yeah, he crashed through it.". We weren't amused.
Damn. Aside from the bizarre idea of a dog coming thru plate glass, I have to wonder about dogs that do this to their owners!