In a past office
we had several conference rooms. One had been assigned to whatever "deep-dive" project was then being pursued.
To defend said conference room from being used by non-deep-divers, a sign with the word "RESERVED" was posted covering the name of the room. To my eye, the room was now named "RESERVED CONFERENCE ROOM" rather than whatever clever moniker it had originally borne.
In response, I printed a sign to rename the adjacent room as "BOISTEROUS CONFERENCE ROOM."
My sign stayed up for at least a fortnight - probably while staff were encouraged to find out what boisterous meant.