I arrived at my assigned row, and found a stocky, gray-haired man in the seat next to mine. When I moved to sit down, he stopped me. “Sit there,” he said gruffly, pointing to the aisle behind us. “Social distance.”

Not eager for a confrontation, I decided to comply. Within seconds, though, a flight attendant materialized and ordered me back to my assigned seat. My recalcitrant would-be seatmate, vigorously objecting to this development, responded by blocking my entrance to the row with his leg.

A standoff ensued, with the irate passenger protesting that there were plenty of empty rows where I could sit (there weren’t) and the long-suffering flight attendant all but threatening to kick him off the plane (she didn’t). Finally, he relented and I squeezed awkwardly into my seat as the man muttered profanities under his breath.