Other "interesting" units include: shakes, barns and bans

https://en.wikipedia.org/wiki/Shake_(unit)

https://en.wikipedia.org/wiki/Barn_(unit)

https://en.wikipedia.org/wiki/Hartley_(unit)

The confusion between force and mass tends not to get appreciated by many folks outside of engineering. Particularly in aerospace when you slip the surly bonds of earth and your mass stops being so bound to the force your feet impart on the floor.