Unintended Movie Double Entendres

In the WWII movie Midway, this scene:

An airplane, over the pacific. Shot of two pilots. Pilot looks over towards co-pilot, says in disgust: "Jeez, Johnny, how many of those can you eat?"

A third airman lifts his head between the two pilots where he was kneeling and looks at the questioning pilot sheepishly.

It's the subtle subplots that makes these old movies so interesting (it's not Charlton Heston's acting, that's for sure).