She's actually doing pretty good with my boy. Although I have of course to supervise them constantly and often separate them. My son loves to run around the kitchen island and dining table and Bailey runs right after him, in the beginning this wasn't working at all as she tried to nip at him and bit in his clothes. Now we started giving her a toy in her mouth when they run around and that works well. She started even taking the toy in her mouth herself and then come up to him, kind of telling him ' come on let's run'.