My grandma tries to eat my dog?!

My dog is at my house and my grandma lives there and at night she treis to kill the dog and put him in the oven. I insist that I will kick her out but she knows Im bluffing because she has no where to go if I kick her out. I tell her if she is hungry she should eat some chicken or make pasta, and even though she has never eaten dog before, she thinks it tastes good. I've hidden the dog from her for a few days now, telling her that it ran away. BUt my friend will only keep it for so longm=, which means we hsould be getting him back in a few days.