British cricketer Kevin Pietersen was refused entry to a Qantas lounge in 2015 for wearing flip-flops, after the company tightened dress codes for Australian lounges earlier that year.
A university student and his wife were not allowed to board a Delta flight in 2012 because his satirical T-shirt, which read “Bombs ZOMG ZOMG Terrists [sic],” made passengers “very uncomfortable.”
In 2011, Southwest Airlines kicked Green Day singer Billie Joe Armstrong off a flight for wearing pants that hung too low. The company later apologized to the musician.
This appears in the April 10, 2017 issue of TIME.