I want a hamster SO bad.. I've been trying to persuade my mom to let me get once, after we got rid of our kitties. ( ) She won't even LISTEN to me try to explain it to her. HELP! I told her I would keep it in my room, away from the dog. She keeps saying "Oh, hamsters stink, I don't want that in the house."

Can someone give me ideas on how to persuade her?