Ancient Industries, the quirky little shop where we found this towel, says that the sign was originally displayed in a cafeteria in England.
We like the message! Maybe we'll hang this on our dining room wall...
Find it: A Real Eye Opener Tea Towel, $15 at Ancient Industries
The design, by the way, comes via British salvage company Trainspotters, and you can find a poster version of the design at their website.
(Image: Ancient Industries)