i remember one time i was parked behind a safeway. and when i was finished with my shopping i saw them unloading there products. there was some soda cans in the corner. so i go in my car and start it up. I see this dog come up to the soda cans and sniff it. So i stay there awhile to see what happens... and well the dog pees on the cans...moves over to the next batch and takes a dump on them...lol