Ever had a nightmare seatmate? On my 14-hour flight home, I was stuck next to a newlywed who turned our row into his honeymoon suite.

I’d paid $1,000 to upgrade to premium economy for some peace. But shortly after takeoff, the guy—let’s call him Dave—asked me to swap seats so he could sit with his wife, Lia, who was back in coach. I politely declined, unless he wanted to cover the cost.

He wasn’t happy. “You’ll regret this,” he muttered.

And then came the passive-aggressive antics: loud coughing, blasting movies without headphones, and spilling snacks all over me. Lia eventually joined him—on his lap. In the middle of the flight.

That was it. I called over a flight attendant, who reminded them they couldn’t share a seat and that upgraded seats are a privilege. Because of their behavior, they were both sent back to economy.

After a failed bathroom stunt during turbulence, they finally settled down. A flight attendant later thanked me for staying calm and even handed me a free drink.

When we landed, I was just glad to see my wife and kid again—and even more glad I didn’t give up my seat to entitled strangers at 30,000 feet.