Papillon Message Board

How or why does my Papillion bark and nip at some peoples heels when they go to leave our apartment? When the company is in and sitting she is sweet and even playful with my company. But when my company goes to leave or get up to go somewhere she barks and carries on like crazy, why is this? And can she be trained to stop the heel nipping and barking when company gets up to leave. She even barks at my wife and I when we go to leave the apartment. We don't mind it with us, but I don't like her barking at my company, or nipping at their ankles when they leave. Thank you Bryan