There is also the rarity. Garbage comes once a week. He may not even see it every week. It is true that he gets to see it "in action" so that helps. He probably

There is also the rarity. Garbage comes once a week. He may not even see it every week. It is true that he gets to see it "in action" so that helps. He probably sees 100 18 wheelers everyday. They are just different cars and nothing special.