If It's Not One Thing, It's Your Labrador

Dusty:  "Nice sandwich.  Looks yum.  Gimme."
John:  "Don't even think about it."
Dusty:  "Just a bite?"
John:  "Not even a crumb."
Dusty:  "Drool.  Sniff.  Gimme."
John:  "Dogs don't get human food."
Dusty: "They do in this house."
John:  "They don't in my house."
Dusty: "That's ruff.  Poor Lucky."
John:  "Lucky doesn't know he's not getting human food."
Dusty:  "Of course, he knows."
John:  "Does not."
Dusty:  "Does too."
John:  "Stop eyeballing my sandwich."
Dusty:  "Make me."
John:  "Woof."
Dusty: "That's my line."