From one of the best movies ever
Man: "Gentlemen, I'd like you to meet your Captain. Captain Over."
Clarence: "Gentlemen, welcome aboard."
Man: "Captain, your navigator Mr Unger and your first officer Mr Dunn." (the handshaking begins)
Clarence: "Unger."
Unger: "Over."
Dunn: "Over."
Clarence: "Dunn! Gentlemen, let's get to work."
Dunn: "Unger, didn't you serve under Over in the Airforce?"
Unger: "Ah, not directly. Technically Dunn was under Over and I was under Dunn."
Dunn: "Yep."
Unger: "So Dunn, you were under Over and over Unger."
Dunn: "Yep!"
Clarence: "Ah that's right. Dunn was over Unger and I was over Dunn."
Unger: "So you see both Dunn and I were under Over even though I was under Dunn."
Clarence: "Dunn was over Unger and I was over Dunn!"
Stewardess: "Captain! Mr Dunn and Mr Unger were sucked
out an airlock in the computer room!"
Clarence: "Both together?"
Stewardesses (together): "Mr Dunn and Mr Unger were sucked
out an air lock in the computer room!"