Two things come to my mind:
- I would be a terrible correctional officer; and
- it is certainly a whole another world where people learn to apply their obviously available intelligence and emotions first in a false way and secondly, then being able to pull the plug and turn against the "duck" with these extortions.
Anecdotally, if I was imprisoned and I started to befriend an officer, my loyalty to him would grow as well as his loyalty to me. I wouldn't be able to pull such a stunt that would potentially get him fired and mess up his life if he didn't bring me pot.