The reaction from the public started with gasps of horror and built to cries for a boycott.
Now, a day and a half later, United Airlines is admitting it did something wrong.
On Sunday night, a passenger on a United Express flight from Chicago to Louisville, Ky., was told he had to give up his ticket so a United crew member could take his seat. The man refused: He's a doctor and said he had patients he had to see.