I have a 6 month old lab who has been pretty easy to train. She is a great girl, good on and off lead, has had great recall etc. However a couple of weeks ago whilst getting her on the lead she grabbed a water bottle out of my hand and ran with it. Unfortunately and stupidly I chased her. This is now a great game. Every time I recall her she comes just close enough to be out of reach and then runs around. Any advice? I've tried ignoring her, walking on, treats, putting her on the lead and then letting her off again but she hasn't got bored of this game yet! Pic attached.