People who stand in their yard and look shocked/scared ( making no move at all to get the dog) as their dog darts in front of passing cars. Also, car that going flying around the two cars ahead of them that have stopped to try and get the dog back to the slack-jawed owners.

Guess what happned on my way home from work

Note: The dog, with help from another woman and myself, made it safely back across the street and into the house, depsite the idiot that came flying around us as soon as we parked and got out to help, and the owners, who even after the dog came back into its own yard, stood there making no effort to grab the dog when it ran up to them!