Is your boss at work at hard-a$s?

At your job, what kind of boss do you have? At my new job, it's very different from my old one. During the interview, she brought up she "got rid of all the misfits." She also mentioned people who lasted only a week before they got canned. A week is too short to judge anyone, IMHO. During orientation, her istant is ever meaner. She'd write people up for not having their shirt tucked in. "And if you get a write up 3 times for the exact same thing, guess who'll be promoted to a guest." Another thing that came out of her: "I'm not mean like most people think." If anyone have to say that, chances are, they are that mean. Are hard es generally good for people or are people more productive when their boss is easier on them?