Here is one of my favorite human-side-of-the-leash training videos, from Safe Harbor Farm's SMILE! Project (website: www.givesmiles.us; youtube channel: givesmiles.us). It discusses seven common reasons why dogs do what they do, to help people see more things through their dogs' eyes.The seven reasons are: (1) The dog has been rewarded for doing it in the past. (2) A negative association exists. (3) He's never been shown better alternate behaviors. (4) He's following a routine. (5) He's looking for an outlet for his pent-up energy. (6) His behavior is instinctual (after all, he is a dog!). (7) He's being set up for failure without his people realizing it.