Someone used a cheese slice as a bookmark, and the library's shaming them on Twitter

As we've learned from the chaotic evil "Don't have a bookmark?" meme from 2019, many items in this world are not meant to be placed between the paper pages of valuable reading material.

Bad bookmarks include everything from a pile of Chex Mix or a puddle of Vitamin Water, to a bunch of Gushers fruit snacks and a piece of chicken. Most suggestions made on Twitter last year were jokes, so we let them slide, but it's recently come to our attention that an actual human being once used a slice of cheese as a bookmark, which is absolutely unacceptable.

On Tuesday, the University of Liverpool Library tweeted photographic evidence of this crime against books. "This is not a bookmark," the account declared, and posted a cursed photo of a discolored, oily, old slice of cheese that's still wrapped in plastic.

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The social media manager for the University of Liverpool's library went on to joke that when talking to a pest control man about mice in the library they claimed to have no idea why the little critters were sniffing around the books. This was, of course, before a literal slice of cheese was found in a library book. Now things are starting to make a bit more sense.

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The sight of this hideous and clearly aged single slice of American cheese truly piqued Twitter users' interest, and it wasn't long before the mystery of this forgotten processed dairy bookmark inspired some cheesy tweets.

The library kicked things off by challenging a few of the 100,000 members of #LibraryTwitter who liked their tweet to come up with some cheesy puns. "We will pick the best pun and post the cheese slice to the winner!" they declared.

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Anyway, Library Twitter stepped up to the challenge and also shared some of the horrifying bookmarks they've found over the years. Spoiler alert: The thread got real... gouda.

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Do you remember in Finding Nemo when those three sharks gather together to say "fish are friends, not food?" In the spirit of that quote, remind yourselves on a semi-regular basis that slices of cheese slice are food, not bookmarks. Glad we had this chat!