I've had them call me out on an R19. Need you at the airport asap...
I'll be there in 3 hours... I could physically make it to the airport in 2:30 and ready to depart at 3 hours..
30 minutes later as I'm in the car driving up to the airport I get another call from scheduling. I'm released until R19 tomorrow. They were able to get someone in to fly the trip they needed me ASAP.