"But the plans were on display..."
"On display? I eventually had to go down to the cellar to find them."
"That's the display department."
"With a torch."
"Ah, well the lights had probably gone."
"So had the stairs."
"But look, you found the notice, didn't you?"
"Yes I did. It was on display in the bottom of a locked filing cabinet stuck in a disused lavatory with a sign on the door saying `Beware of the Leopard'."

Douglas Adams, "The Hitch Hiker's Guide to the Galaxy"

*** Un doveroso ringraziamento al Prof. Theseider sperando che mi perdoni per il brutale plagio dell'idea! ;-) ***