Are you a bad tourist?

You may be. Here's how to know.

Illustration by Christopher Elliott

My son sat next to the world’s worst tourist on a flight from Sydney to Denpasar, Indonesia. His seatmate nursed a bottle of sizzurp — a potent mix of codeine and Sprite — and the man twitched uncontrollably for the seven-hour flight to Bali.

When the intoxicated tourist disembarked on the conservative Hindu island, he …