sure did, was going ORD-LAX-NRT-SIN, ORD-LAX was mechanical, and after 45 minutes on the plane, I was going to miss my LAX connection, so I got off, and got rerouted ORD-HKG-SIN.
Having no luggage made that possible. But got stuck in the middle seat of a 747 for 16 hours on United (E+ is minimal on 747)
Since this was United, was heavily compensated for the inconvenience