At a company I worked for years ago, I was the "onboarding buddy" for a new hire. My job was to welcome him and help him learn the ropes. He was very respectfu

At a company I worked for years ago, I was the "onboarding buddy" for a new hire. My job was to welcome him and help him learn the ropes. He was very respectful and appreciative of my assistance. After the onboarding period I learned that he was hired to be the manager of our team. Everything changed. Now it was "I am the boss, you are the worker. I will assign you tasks and expect you to complete them. And don't question my decisions!"