I know a fair number of people who have been asked to travel by their employer post-abdominal surgery (hernia, female reproductive, etc.) at a point where their doctor has cleared them for a return to ordinary white collar work, but still wants them to not lift more than about five pounds/2.5kg. And whose employer would freak at the idea of checking a company laptop and other proprietary work product into the hold.

Which leads to relying on the kindness of strangers, and fortunately for them, kindness comes through and saves the day.