Are you thinking of Simple Sabotage?

https://en.wikipedia.org/wiki/Simple_Sabotage_Field_Manual

This site is fun and more modern:

SIMPLE SABOTAGE FOR THE 21ST CENTURY

https://specificsuggestions.com/share/EN/6069.html

Have you not heard of La Chancla?

My friend delivered for Amazon for awhile and he had a regular delivery of 50 pounds of dog food that he had to carry up several flights of stairs. I was thinking about him, and all the times in my life when an unexpected fiver would have been useful, so I’m glad you commented.

That sucks. I wonder if 3rd party drivers can’t participate or if there are regional limitations?

Asking honestly, respectfully, and in good faith - is there a downside to doing this? Edit: I mean, is there a downside to rewarding the driver via this promotion.