Example:
Metal fan 1: I really like Mastodon's newest album. It's really groove heavy and melodic.
Metal fan 2: Oh yeah it's good. I met Troy Sanders. He was a cool guy.
Metal fan 1: >looking perplexed<
Metal fan 2: The Atlanta metal scene has some good bands in it.
Metal fan 1: I don't really prefer a lot of bands from the local scene.
Metal fan 2: There's some good ones, oh did I mention I have a band? MY band is signed to Deathgore Records.
Metal fan 1: What style is it?
Metal fan 2: Style? Oh it's hardcore death metal and black metal. >taking a breath< I met and had a beer with Alex Webster from Cannibal Corpse.
Metal fan 1:

Metal fan 2: Hey did I mention I met..........
The Kagan Effect drives people away and once the pattern is seen they don't want to have anything to with those that exhibit this behavior.