Son is currently in that stage and it's kind of a pain to keep him from trying to mess with her at times, mostly when he needs a nap and is in his ffuuu mood. For the most part he doesn't bother her any more. She doesn't mind it at all but I worry about if he was to spook her while sleeping or something. There's been times where other kids have tried to ride her, jump on her, etc and she handled it great but you never know, especially with her getting up there in age. I just don't think I'd be able to give her another chance if she got aggressive with him, but I do understand dogs get spooked, fed up, etc and the teeth are their only way to protect themselves.