My Lab puppy is about 15 months old now, and still can't seem to keep him out of the kitchen trashcan. After he ate the old one, I bought one with the lid that pops up when you step on a lever. Work for a while, but he eventually figured out how to knock it over. So I filled the bottom with about 30 pounds of lead. Couple of weeks later, he managed to tip it over again, so added another 20 lbs, solved that problem so far. He's still managed to get into last week twice. Didn't make much sense, since the lid is held down pretty good, figured it must be a little painful to raise it with his nose. Caught him today, helping himself to some chicken bones. He steps on the lever. Guess I'm going to put some kind of latch or lock on it. Kind of kills the convenience of it though. It's kind of spooky though, and got me to wondering what else he has learned from watching me. How long before he starts opening doors, or turning on water faucets. He's only about half way to adulthood, but he's already getting past being a destructive puppy.