A sign commonly seen in libraries, featuring various insects and rodents crawling in, around, and through what appear to be precious texts. The moral is as follows: if you eat in the library, your residue will attract various lower orders, which will in turn feast on the brittle pages of Webster 1913 and its kin. So in effect, your inability to save the Cheetos for later leads to ancient knowledge lost forever.

It's in the same guilt-inducing vein as the glares the librarians beam at you if you happen to put your feet up on a desk. The sign seems to nag, "You know, we don't have to let you read the Swimsuit Edition for free."