Means employed:
Lie
Categorization and negative labels
Refusing to consider another's position
Putting on Blinders:
It is difficult to make progress in a dialog if one is to utilizing such devices.
Dialog is such an important tool in KnowledgeProliferation, and the Employment of DialoguePractices can be helpful in promoting thoughtful, accurate, and conclusive Dialog.
What turned you off in a dialog you were having, here are some samples, add your own:
(try to use ones you have seen or encountered - on this wiki)
Implication of ineptitude:
"just doesn't make sense"
"is silly"
"Why is this distinction important anyway?"
"But we've always done it that way"
Any time religion is brought up
"God says so."
"The Bible says..."
"Your just listening to those cult people..."
"You must be saying that because you hate Jesus..."
A scientist dismissing the 'paranormal':
"Looking for evidence is a waste of time [because] there's no mechanism to explain it"
When discussing something other than maths, logic or "real" science:
"It has been proven beyond all doubt that..."
"It must be self-evident to every sane person that..." etc.
"You will never be able to persuade me that ..."