My friend's kids used to come into the room, holding their little fingers like a gun and yell, "Hands in the air, you're under duress!!" Or alternatively, "You're under the rest!" We still say this to them, thought as high schoolers they know that it is Under Arrest.
A childhood belief about police

others believed things like this
- I used to think that the upper struture on the caboose was the rest room.Anon
- I used to believe that if you did not keep your shoes tied, that the police would arrest you.— Kelly
- My mom threatened that if I didn't eat all my vegetables that the police would come and arrest me.— Lisa T.
- I thought your fingers would grow back if they got cut off— Nate
- When I was a kid, I slept with my fists balled up because I thought if I didn't, E.T. would eat my fingers. — Brian
- Whenever my fingers wrinkled from staying in the pool too long, I thought I was aging faster.— The Mortal Elf