Anybody found throwing rocks at low-flying German aircraft will be thrown in the boob.
5 seconds sound clip from the Stalag 17 movie soundboard.
You can hear this line at 00:28:28.924 in the Blu-ray version of the movie.
Quote context
[...]
- Next. Tuesday afternoon at 2:00, all men from Texas will meet behind the north latrine.
- Next. A warning from the kommandant.
- Anybody found throwing rocks at low-flying German aircraft will be thrown in the boob.
- Yeah, the doors are covered.
- Okay, Steve, give them the radio.
- You can keep it for two days.
- Two days? We're supposed to have it for a week.
- You're lucky to get it at all.
- The boys are afraid the jerries'll find it here. This barracks is jinxed.
[...]