I've certainly heard of it and it's one part of the cancer creating this state of societal breakdown. The concept needs to be soundly rejected. Any immunity shield should be narrowly scoped based on following written procedures. Acting within those procedures should mean that liability falls only on the institution. Acting outside those procedures should mean the institution and the agent are jointly/severally liable. One of the foundations of our society is that nobody is above the law, and government agencies need to stop being given this cheat code where they harm innocent victims and then just walk away from the situation unless it is especially egregious.