One of my parent's dogs, used to be mine before I went to college, was addicted to stealing coffee, she didn't want to coffee so much as the stealing part. At one point at an off leash dog park she knocked a guy over and ran off with his coffee. The next day he was ready fo0r her so she couldn't take him of his feet, problem was that he was wearing a hat with a long dangly thing on it so she grabbed that and ran off with his hat. The guy put his coffee down so he could chase her, she waited till he was about half way between her and his coffee she then dropped his hat ran around him and took his coffee.