The designers of the Apollo LEM had a dilemma: what kind of seating to use that is comfortable, functional, and cushions the blow of a hard lunar landing? They

The designers of the Apollo LEM had a dilemma: what kind of seating to use that is comfortable, functional, and cushions the blow of a hard lunar landing? They started with a couch and the weight budget was horrendous. So they ripped out the couch and told the astronauts to simply stand. It wasn't a long flight. It turns out that human knees are the most effective shock absorbers you can have. Worked a treat.