Most of us have had the experience of being bothered, irked or irritated by someone's behaviour. It's a common experience in life to get judgemental of others.
In fact, in some cultural niches of our society, the witty criticalness of others is admired.
As an example, when I was in the theatre I remember the usual practice in one troupe was to gather in a bar after a show and spend a good deal of time in a game of one up-man-ship in judging others.
Sometimes lunch-time conversations in many businesses become a breeding ground for criticalness of bosses or other employees. It can become a major contributor of stress and low moral at work....