So a man goes to the grocery store and waits in line

So a man goes to the grocery store and waits in line. He notices there's a dog front of him. When it's the dog's turn, the dog reaches over the counter and gives the clerk a note and some money. The clerk takes the necessary things, puts it in a bag and hands the bag and some change to the dog. The dog takes everything into his mouth and walks way. The man is so baffled at all this he forgets what he was in the store for and goes home.

The next day, he heads back to the store for the groceries he didn't buy the day before. And sure enough, there is that dog again. The same scenario unfolds before his eyes. Once again, the man is puzzled. He manages to buy his groceries and goes home, making up a plan for the following day.

The third day, he goes to the store again, looks inside, and, seeing the dog, waits outside. When the dog exits the store with the bag in his mouth, he starts following it.

What follows keeps surprising the man. The dog waits at the busstop, waves at the busdriver, steps into the bus, pays the busdriver, sits in a seat, rings the bell and gets of the bus.

Next, the dog walks up to a house. In front of the door, it dabbles around a bit. After some time, it seems to reach a conclusion and goes around the back of the house. There, the man sees it jump over the fence and dissappear inside.

The man is so surprised at what he has just witnessed and decides to ring the door to congratulate the owner of this wonderful dog. When the owner opens the door, the man starts describing what he saw: "He buys your groceries, takes the bus, and jumps over the fence!".

The man responds: "Aw, he forgot his keys *again*?!"