You laugh, but when I was in graduate school working long hours, if I needed a break from the PhD's who controlled me, I would go to a random building with a cl

You laugh, but when I was in graduate school working long hours, if I needed a break from the PhD's who controlled me, I would go to a random building with a clipboard and one other item (flashlight, red pen, sometimes just a stick) and find a dark room to hide/sleep in. No one asks you questions if you have a clipboard and something else that makes them assume you know what you're doing.