The car behind you. When driving, someone is usually behind you. If they expect you to get out of the way for them, they are Expecters. They expect to get to the destination with no barriers. Expecters are also BMW driver, ambulences, police, fire briagade and old people. See example below.
The Expecters were behind me yesterday when i was rollin in my benzo - they had tier sirens on as well.
Those damn Expecters crashed into my car!