Librarian Shaming is a Tumblr in which the deep, dark secrets of library science come out in confessional format. Here's one especially egregious post:

I…

• Dog-ear pages to save my place
• Underline words to look up later (I use pencil so I can erase after.)
• Never remember to erase my pencil marks
• Break spines
• Hardly ever return my library books on time
• Almost always owe a fine
• Reprimand at least 30 students every day for any or all of these transgressions

I do at least one of the things in this list. I, too, know shame.

(Via Stephen's Lighthouse.)