Not really. We have these play fights that can really scare people who don't know we're playing. She's got a big pitbull jaw and teeth, and she starts growling and pretend biting my hand. In reality she barely touches my skin, but she puts on a good show. I know, this is not recommended for dog owners! Don't try this at home! We've been doing it since she was a puppy. I throw her around too, flip her upside down. People think I'm insane.