No one eats in a college library.
This was obviously a prank as it was written on the whiteboard.
No one eats in a college library?
I worked for decades in libraries - public and college - and people *always* eat in them. University libraries began including cafes and eateries over a decade ago. The patrons aren’t supposed to take the food out of the eatery and into the stacks or computer areas, but they do.
Even before that, we found leftover food all over the place.
(Another myth about libraries is that they are quiet places. They may have been once, but most haven’t been for a very long time ;-)