Khabib Nurmagomedov a former UFC champ got kicked off a Frontier flight because of a problem with his seat. He was in the emergency exit row which means you have to agree to help people in an emergency. Apparently there was some confusion about that and it led to a disagreement with a flight attendant.
Someone filmed the whole thing and it shows a crew member giving Khabib a choice either change his seat or get off the plane. It’s not super clear exactly what they argued about but it seemed to be about him being willing to help in an emergency if needed.
In the end Khabib decided to just leave the plane. This whole thing shows why it’s important to follow all the airline rules especially those about the emergency exit rows. It messed up his travel plans for sure and is a good reminder about plane safety procedures.