While sitting in my car waiting for a store to open (Costco) some guy in a pick up truck backs into my car. I get out of my car right away and yell Hello and procede to the drivers door and tell the owner to move forward and he did. I go back to look at the damage, only a smudge, nothing serious thankfuly. It was the trailer hitch receiver that bumped my car just below the Pontiac emblem. By now I'm waiting for the other driver to come back and see what they did but it never happened. Once they did get out to go to the store I laid on my horn a good few times but no reaction from him. Now I go into the store and follow this guy down one of the isles and purposly let my shopping cart smash into his and clearly apoligize for my action. He now knows what he did outside and offers no apology of his own.