When you work in an industry everybody uses, you learn a lot of information the general public doesn't know. Retail employees learn all the weird ways people try to shoplift; those in food service learn exactly what goes into our meals, and those who work in aviation learn a lot of information about passengers, planes, and what happens to your luggage in the cargo hold.

Flight attendants took to Reddit with answers to the question "What do the passengers *not* know?" last week. The answers varied from surprisingly useful information to TMI.


One user shared information gained from a flight attendant that, if passengers are told to brace for impact, they should place one hand over the other—not interlace fingers. The top hand will protect the bottom hand from injury during impact. If possible, place the dominant hand beneath.

And then things got fun.


Another user talked about what happens when aircraft transport cadavers or body parts for hospitals. Surprise ending: sometimes the carriers leak onto luggage.

Also: never walk around a plane barefoot.

Happy flying.

This Story Originally Appeared On Travel + Leisure