Ok, my husband's friend from work used to have a chow dog (they just recently put her down). She started getting really wierd, unpredictable, she'd get aggressive and back you into a corner and then right before she would bite you she'd just switch and be a good dog agian. She didn't just do this to me she did it to her owners too. They said she did stuff like that all the time, once she started getting old. So they took her to the vet to talk about the problems they were having and the vet said that chows brains constantly grow throughout their life and eventually they get too big for their skulls and the brain will press up agianst the skull and cause the dog a lot of pain. The vet said that that basically drives the dog insane and makes them do the aggressive things that the guy was saying. Is this true do Chow Chow's brains grow like that? It sounded too unbelievable to me, but lots of things that sound unbelieavable are actually true so I decided to ask you guys and see if anyone else knows.