Fail Fast Before The Bridge

Description

A road photo shows a large yellow overhead sign stretched across the street before a low bridge. The sign reads, in all caps, "IF YOU HIT THIS SIGN, YOU WILL HIT THAT BRIDGE," with the bridge visible farther down the road. The visual joke is that the sign is a physical preflight check: a cheap, early failure before the expensive, structural one. In software terms, it is input validation, fail-fast design, and user-facing error prevention implemented with brutal clarity.