Oh, no, please beg her not to put that sweet Sydney through any unnecessary pain. She is just adorable the way she is. Could your sister just be baiting you to get you upset?? I certainly hope so, because that would be the least of the two evils. Both Hannah and Tucker's tails are cropped but I did NOT have it done. They were that way when I got them. Poor Tucker's is so short he looks like he doesn't even have a tail.