Some people posting here are getting very sensitive so I thought I'd lighten things up with a CRM joke......
The scene is sometime in the early years of post World War Two when cockpits had round dials plus flight engineers and navigators. The crusty ex Lancaster Captain is breaking in a brand new navigator.
The Captain opens his briefcase, pulls out a .38 and rests it on the glare panel. He asks the navigator, "Know what this is for?" "No, Captain," replies the newbie. "I use it on navigators who get us lost," explains the Captain, winking at his first officer.
The navigator then opens his briefcase, pulls out a colt .45 and sets it on his chart table. "What's THAT for?" yells the very surprised Captain.
"Well, Captain," replies the Navigator, "I'll know we're lost before you do."