My six month Lab has developed a habit of chewing sticks on his walk. The wood is mainly 'passed' in the usual way but sometimes he regurgitates it. Couple of days ago, he got a piece wedged in his upper jaw and it took three of us to get it out! It could have been so much worse had it stuck in his throat. Does anyone have any ideas how I can discourage him from picking up and chewing sticks on our walks? We don't have dedicate dog parks in the UK and St Louis Park is a fairly enclosed area that is fairly safe to let your dog off leash. There's a group of us who meet up after dropping the kids off at school and the dogs play together...it's and old cow field that was left vacant when the estate was built so dog walkers (and everyone else) could have a recreation area.