A dolphins also a very intelligent animal and tunas just a fish. If I was living with a small child I certainly wouldnt want a stray rat anywhere near it. Some people have rats for pets but theyre much less dangerous and diesease free. But majority of the rats people have to deal with are stray vermin causing damage to your house, endangering your kids etc. Most cats though are friendly household cats and relatively harmless and the same goes for hamsters. If I had a pet rat and someone killed it Id still be pretty annoyed. Thats bear didnt seem to be of much harm. Just as Sasquatch said bothersome to get out of the tree but theyre would have been ways to get around that Im sure.