@Carnival-Boy said:
You got any examples, because I've never come across anyone saying these things?
I've seen (and been involved in) discussions where people seem to interpret "I have a different opinion to you" to mean "I am insane and deliberately put my company at risk", but that's not the same thing.
There was one last night that brought up the topic, but it is common. It is normally an emotional reaction to reasoning. I'll give a solid one from long ago not associated with any community.... a director was presented with a vendor selling a product that was known to not work and was going to cause a major project to fail and was presented with an internally tested, known working solution that was essentially free. When shown that the cost difference was only a million dollars he responded "I don't sign paper for only a million dollars."
Not only did he use that statement to funnel a million dollars to a vendor that he knew couldn't do the job, he let a project fail too!