Akita vs Old English Sheepdog

The AKC's own breed standard warns that Akitas 'may be intolerant of other dogs, particularly of the same sex' — that's not a rare temperament quirk, it's written into the official standard, and it's a major reason the breed is refused or surcharged by roughly 4 in 5 home-insurance breed-restriction lists.

The 'shaggy dog' coat everyone falls for needs several hours of hands-on brushing every week for the dog's entire life — skip it for even a couple of weeks and it mats down to the skin, which usually ends with a groomer or vet shaving the dog completely bald to fix it.