Quote Originally Posted by Jordan View Post
That sounds interesting care to expand?
Not that it is relevant to this discussion specifically but... its the fallacy where an assertion is made that a scotsman would never do something and when an example to the contrary is found the assertion is that that person is no TRUE scotsman. Usually the initial assertion is begging the question and the speaker falls into NTS by refusing to acknowledge the initial fallacy.

the No True Scotsman Fallacy was one of the couple dozen fallacies that I remember studying in college.

Wikipedia: http://en.wikipedia.org/wiki/No_true_Scotsman