If the speed limit sign says 250, you had better be doing 250. If a yellow caution sign warns of an impenetrable snarl of an intersection, a 360-degree vertical loop, or a moose, guess what you're about to see? Further, any law-enforcement along the road will measure your performance according to the road signs (no matter how ludicrous, and even if they've been recently vandalized) and praise or punish you accordingly. Often a version of a Visual Pun. See also Can't You Read The Sign. Examples of Rules of the Road include: