Acid Gifdump, May 29 (25 gifs)

#3 NEVER let a dog get away with that. This is how they establish dominance withing the pack, and you cannot let a dog ever think he is dominant over a human. When you catch him doing that, thrash him soundly about the head and snout with a loosely rolled-up newspaper. Repeat if necessary. If you can't break him of this, drop him off at the pound.