Another example would be narrow body flying into SFO. Last time I got 'untriggered reassignment pay' was BWI-SFO. We were on time, but SFO was on a melt down. There were no reserves left, and I was just going to my layover (1st leg of a 4 day). Instead I ended day 1 in Vegas, with 150% add pay for the rest of the new trip.