On the contrary
They don't seem to have any difficulty denying that their beliefs are at odds with reality- the problem comes from getting them to admit it.
( Lord Gnome hates Nerys Hughes (from the heart), Mon 13 Oct 2008, 11:49, archived)

I wasn't being sarcastic or anything.

( Newington, Mon 13 Oct 2008, 11:52, archived)