When I was about 20 I worked as the receiving clerk for a drug store chain in NJ. This would have been 1983 or so, so it was a different world to say the least.
The assistant manager and I were friendly and were horsing around in the receiving room which is where the loading dock and the trash compactor were.
The trash compactor consisted of a probably 5’ square steel door in the outside wall, which connected to a large steel ramp that sloped down to roughly pavement height which meant a ramp about 6-8’ long. At the bottom was a space where the cardboard and other trash would accumulate until you pushed the big button on the wall, after which a massive hydraulic ram would come in from the left and crush everything into an attached trash container on the right. It was basically this but in a different orientation:
Anyway, for fun the Asst. Manager picked me up and threw me into the chute where I slid down the decade of accumulated shampoo and who knows what else that had accumulated on the ramp, and was unceremoniously deposited onto the compactor. He then slammed the door closed and pushed the button.
Luckily, I’m not prone to panic, and even more luckily those compactor rams are REALLY slow so I just climbed up on top of it and waited for the maniacal laughter to stop.
The hardest part was getting back up that slimy ramp.