During the 50s trick or treating was kind of a tedious process. On our block just about every home had kids and the moms were stay at homes. So there was no treat until they could guess who you were. Nowadays kids just run up, collect the candy and go.
My older brother and his friends used to go out the night before Halloween and trick or treat a few blocks away. They surprisingly collected a lot of candy that way.
We used to stick car horns back in the days when there was a chrome ring inside the steering wheel for the horn. All it took was a wood slat wedged in with the car seat to hold the ring down. That and an open unlocked car. That was a dangerous game because some adults liked to set traps to catch you. That was done in the suburb of Speedway. When I lived in the inner city of Indianapolis I would not dare to try it.