@ehBeth,
Well this was a planned pet gift - my SIL did say at first she was getting the kids a Rott. My mom panicked and said that isn't a good dog for young children - and have you checked if there would be a problem with your insurance company?
She came back later and said - oh I changed my mind we are getting a golden retriever or a black lab. Then surprise Christmas we get a picture of the new puppy - I just glanced at saw that it looked black and assumed it was a lab.
Then when the kids came over they said oh it is a rottweiler. The ex-SIL was (my guess) being sneaky - which my other guess she isn't going to be telling the insurance company she has a dog much less the breed and she will think she will get away with it.
Funny story on these and insurance companies. My mom had a dog - when he passed away, she of course, made note to the insurance company they no longer have a dog. Months later she gets a call from the insurance company saying we show a Beware of Dog sign in your yard. She explained (and it is true) she left it up to keep her home from being robbed. So crazy huh, insurance companies do check these things.