At the recent Modern Day Marine Expo at Quantico, VA, I happened to see one of those typos so easy to make - hit the key next to the one you mean to and oops! This one was a reminder that, with the military using more and more robots to carry out all sorts of tasks, the machines are only as good as the people programming and directing them.

This reminded me of a non-typo that was still an unintended slip - a sign directing patients at a hospital to the adjacent Medical Office Building read "MOB Entrance."