Instead of "Flat Tire" I recently got the benefit of the "Frigging Teenagers" rule when my son showed up at the gate 3 mins after the door closed...after not following very explicit instructions fom Dad on when to leave and what route to take...excuse was that TSA had him do extra screening. Mmmm, that's what the extra 30 mins that you blew off was for!
And when teenager daughter missed the last flight of the day because of a gate change in ATL and was put up for the night in the kid's bunk by DL. And for that time when Dad had his watch still on Central time in ATL...Oops.
So thanks from me as well, Delta!