[21twelve]

Back in college, my parents visited and we stayed at one of their friend's condos in Vail. The Secret Service would use it as a post - it was opposite Gerald Ford's place.

There was a handwritten 3x5 card hanging from the abnormally short kitchen doorway. “Watch your head Mr. President”.

I wasn't sure if it was really for the president (hanging out with the boys, away from the wife and play poker and smoke cigars?) - or, was it just a playful reminder to themselves to duck?

[Moonman62]

My guess is the owners put it there for humorous effect.