Plane journeys can often be unpleasant, sometimes due to the seat you end up in.
Some people ask to swap seats, sometimes there's someone in your seat by accident, and occasionally you'll encounter people who will steal your seat. One woman was left confused after boarding a plane with her family to find another family was in their seats, reports the Mirror.
While she said she was irritated, they sat in the empty seats without making a fuss. However, 'karma instantly hit' when the people who had stolen their seats encountered an issue.