I've watched my flight take off from the departure gate at Stansted, despite constant assurances from airline staff we'd make the flight. Hey ho, managed to get that cost back through credit card company.
To expand on this, as I was busy at the time, the flight was to Barcelona for our first family holiday in a few years and a friend's family was coming along too. This was right when the baggage strike hit in Spain. The reason we were able to claim all our costs back through the credit card was down to the fact that the airline did not warn us, in sufficient time, about what was going on.
So a short timeline:
4:00am - depart the houses for the journey.
6:30am - arrive at airport, parked up, check-in opens at 8:30am.
8:30am - first in queue for check-in. "Oh sorry, you can't check your bags in." What? "There's a baggage strike in Barcelona, so you can only take hand luggage on board." Okay, well there's still plenty of time, we'll repack and come back.
So we spend the next half an hour buying the biggest hand luggage bags we can manage and repacking 5 suitcases into them for 7 people. Easy task on paper, much harder in reality when there's a very small toddler that requires constant attention and a hysterical mother as a result.
10:00am - bags have been repacked, suitcases stored back in the cars (my lord that was a long run!), everyone back to check-in. Raise concerns with check-in staff that we're starting to cut it a little fine to get the flight. Told "Don't worry, we'll hold the flight, you've checked-in".
10:10am - join the snake queue for security which takes an inexplicable amount of time. I haven't been back to Stansted since, but this queue was wrapping itself all around the check-in area.
11:30am (roughly) - get through security, finally, and airline staff meet us to "fast track" us to the departure gate, going through back passages etc
11:45am - we watch our flight taxi out and take off from the departure gate.
Cue tears from toddler and more hysterics.
Our saving grace was that when we eventually returned home that afternoon, there was an answer message on the home phone that amounted to "Bla Bla calling from seriouslybadairways, there's a baggage strike in Spain, no luggage". It was recorded at 8am. Suffice to say the credit company were very good and as soon as they heard the message that was left (and crucially, the time it was recorded) they refunded us the full amount instantly and chased the airway. If I recall we did actually get a token amount of compensation too.