"The Most Frustrating Sign" on view at the denver international airport:

"I'm a piece of paper. May I help you?"
MAY I HELP YOU? Is this some kind of a JOKE?
"The Most Ill Advised Emergency Plan Sign" also at denver international airport.

I don't know about you, but a bathroom is quite possibly the LAST place i would want to be during a tornado...
Lastly, the "Overly Specific Sign" as seen in the NY Subway.

"Lean on your best friend for the $50 he owes you. But don't lean on the subway car doors."
Isn't this sign strangely specific? It's as if the copywriter's best friend owes him $50 and he is either really really MAD and wants to tell everyone that his BEST FRIEND is not paying him back or he's just really passive aggressive.
I can think of a zillion things that make more sense than "Lean on your best friend for the $50 he owes you. But don't lean on subway car doors."
Like:
"Lean on your best friend." FULL STOP. none of this "for the $50 he owes you.
or
"Lean on your Pro Med Walking stick. But don't lean on the subway car doors."
or
"Lean towards Socialism when the current administration seems to be f-ing everything up. But don't lean on the subway car doors."