Observe how the irritation begins when your boss behaves the way he behaves.
What happens? If inside something starts boiling up then take a deep breath in, and instead of focusing on your boss, focus on the sensations in your body.
Work on yourself, you can become more skilful.
All foolish and stupid people are there in the world to make you skilful. They bring out the skills within you. How to handle them, how to behave, all these skills come out of you.