I have always wondered if the expression Mind the Gap got its start in the London Tube where the ubiquitous signs with that phrase remind riders to be careful stepping onto and off the cars or if the Underground simply adapted the saying from another common usage.
I have always wondered if the expression Mind the Gap got its start in the London Tube where the ubiquitous signs with that phrase remind riders to be careful stepping onto and off the cars or if the Underground simply adapted the saying from another common usage.