Those should be punished.

A best way to punish those people is to ignore them. And it happens naturally. People who block their minds eventually get outdated at a point of time. May be it is irritating to tolerate them now, but in due course they would go nowhere. If it is in your office and he is your boss, you can try to explain him other time. If it doesn't work, you have to just wait for things to change.

Nobody can agree with everyone else all the time. I do not think people should be punished for a disagreement, however one can disagree without being abusive. I think that there might be something to say about punishment for someone who is constantly abusive. Personal insults have no place in websites such as these where subjects are debated. I always try to debate the subject, not the poster. When a flame war gets started it is neither pleasant for the people engaging in personal insults, nor pleasant for people reading their diatribes.

A lot of times people act that way because they know it will get a response from you. I find that ignoring them or responding to them in the exact opposite way from what they are expecting is the best way to pay them back without resorting to being mean.

Yeah I agree with you. I have some people to remain unnamed in my life that are constantly downing me and making little comments. I get so tired of it and they just do not realize they are not any better. It seems sometimes my mean streak comes out and I can't wait for the day that they get punished. Grrrr!