#7 I don't bring up grammar except in a few circumstances, such as if there are serious legal, financial, or health consequences, etc. The one other situation in which I'm inclined to point out grammar errors is when someone is being rude. Given that this entire list is a rude hissy fit by a bunch of 20-year-olds, I would love to ask this:

How in the actual F do you spell *Doctors* with no apostrophe, then spell *Karen's* with an apostrophe? They're two plural words; both should be handled the same way.

I'll bet Karen has better grammar. Or at least more consistent grammar.

You should speak to the manager.