John Oliver does it again.

"Look, at some point you’re going to have to draw a line. So I’d argue, why not draw it right here? And when they come to you with stupid, ridiculous demands, picking fights that you know you could win in court, instead of rolling over, why not stand up and use four key words they don’t tend to teach you in business school? Not, ‘OK, you’re the boss.’ Not, ‘Whatever you say goes.’ But instead, the only phrase that can genuinely make a weak bully go away. And that is, ‘Fuck you. Make me.’”
https://www.youtube.com/watch?v=ohPToBog_-g