I traveled to Turkey with a group of 50 people. On the way back home, at the airport in Istanbul where we were supposed to have 4 hours of free time, one person from the group accidentally stepped out of the airport.
This led to all 50 of us in the group having to go through customs again and we barely made it to board the flight.
What should have been 4 hours of rest turned into 4 hours of hell.