I created some test entities specifically for our staging site. Written in all capitalized letters in the BIG TITLE of the entity I included DO NOT DELETE. This is very clearly visible in the CMS. What's the first thing the content managers do?

You guessed it.

I guess if plain English doesn't work, I'll have to use Kindergarten rules and put a custom lock on them so they can never be deleted.

Muad'Dib fullstackchris can already predict the future, in a few weeks: "hey!!!! fullstackchris, I can't delete these test entities!!!!! whats wrong with the system?!?!"

sigh...