We got a new (10 month old) cocker spaniel a week ago. He's lovely apart from when he steals things that he knows he's not meant to have. He hides under the kitchen table and growls/snaps if you try to get whatever it is off him. I'm trying to ignore/get him to come out for something else but he's just stolen a knife from the kitchen work top
Any ideas how to get him to come over. Give up stolen stuff without him biting me