Robitussin CF Max Severe TV Commercial, 'Flat Earth'

As two friends wait to board their flight, one has a coughing fit but tries to play it off like it's nothing. The other rolls his eyes, saying if that's "just a cough" then the earth is flat. The two have a vision of themselves on a pirate ship, facing an actual flat earth in the form of a huge waterfall that will surely be the death of them both. The man decides to treat his cough seriously with Robitussin.