I don't really have many travel disasters. I have had a bunch of delayed flights. Missed 1/3 of a three day vacation to Bahamas years ago because someone tried to flush a diaper down the toilet on the flight before us and they had to get it out because there was only one bathroom on that plane and they can't fly without a functioning bathroom. By the time they got it cleared the flight crew was off duty and we had to wait for the next crew to come in. It ended up being a 10 hour delay and didn't leave until 6am the next morning. By the time we arrived we were so exhausted that we just slept the first day.