#34: Shed a little warning light
Have you ever been in a dark room and someone suddenly hits you with a bright light? Ugh! It’s a terrible feeling, and it leaves you temporarily blind. As this Reddit user suggests, it’s an unwritten rule to let others know you’re about to make their world go unexpectedly bright. Especially if they’re vampires.
We’re kidding about the vampires part, but as a rule of thumb, when you enter a dark room, do everyone a favor and announce that you’re flipping the light switch. You can turn your announcement into a grand affair, or you can simply let them know. Either way, you’ll rise a run on the humanity scale when you give them a heads up.