I love this story ! Buddy seems like a very cool dog
When I take care of Buddy I usually bring him a burger or some other type of take out to give him at his home. I do this because he is use to Dave bringing him home something almost every day when he goes to town.
Buddy eat very good and his waist shows it. When Dave cooks at home he always make enough for two people and Buddy gets at least half of what Dave makes, plus the take out burgers, and still two large bowls of dog food on top of that.
If Dave leaves his bottled water on the floor Buddy will help himself to that as well. He carefully unscrews the top off the bottle and then drinks the water. It took Dave a while to figure out why he was going through so many bottles of water. Now Dave has to keep the water on top of his Fridge.
Buddy has a home-away-from-home. I bet Dave will be amused and surprised that he found his way to your spot. Maybe he tracked you by smell? No doubt since you fed him sausage, he will be back!! :-)
Sounds like he's a smart doggie!