(parodical) YouTube popup:

Going to pee during the ad break violates YouTube's Terms of Service

• It looks like you selfishly left the room while our ads were playing. Don't you know that by watching youtube you entered a CONTRACT?!
• We killed the competition by operating at a loss for a decade. We paid good money to be the only game in town.
• Now that there are no other options, we can start to make that money back however we like. So turn your webcam on so that our advertisers know you're paying attention.

(Two buttons, first one suggested)

Let us program your brain

Foot the bill directly