These Public Bathroom Notes Show How Bathrooms Really Can Be Funny
A Physics Cheat Sheet
Whether you’ve taken physics or not, you can probably feel how valuable this note would be if it applied to a class you were taking. Memorizing formulas is one of the more challenging parts of math.

squishy121/Reddit
squishy121/Reddit
Some may think that whoever wrote this was being a good samaritan, while others would call this person a mischevious cheater. Truth be told, these hints wouldn’t do much to save someone from flunking physics. Still, it’s the thought that counts.