Messing With Bob

One of us is messing with Bob, but I aint telling who.  Every morning Bob puts the small bowl of cat food in the computer room close to the edge of his desk and by dinner time it is about two inches out from the desk again.  He doesn't like it out that far because when he turns his chair to get up it is right under his feet.  He has stepped on it and catapulted the food across the floor a couple of times because of that. *laughs*