Well, today already has a really long story. I will make it as short as possible.
We get to the airport and check in. We board our flight.
The airplane has a glitch.
Everybody deplanes.
I run back down to the ticket counter, where I stand for 20 minutes, but manage to get us a different flight, with a different carrier.
Guy at America West counter (our original carrier) said he would move our luggage.
We fly to Dallas on Delta.
We fly to San Diego on American.
We arrive in San Diego. Our luggage does not.
Guy at the luggage counter had no clue.