Free advice: If you pay a handsome fee to see one of the best comedians working today perform, put your phone on vibrate and try not to talk aloud during the show.
Here's why: A woman attending a benefit show Louis C.K. was hosting to raise money for his kids' school didn't adhere by the aforementioned rules. During one of the show's quiet moments (fast-forward to 1:36 if you're impatient), she screamed out to Mr. C.K., and as a result was put on blast.
Don't let this be you.
[via Clip Nation]