Pity you can't be immunised against deceptive snake oil salesmen - 2011-06-15
If you need people to be convinced of your cause, it helps to have a charismatic representative.
Unfortunately, as is so often the case, it's a fine line between charisma and Captain of the HMAS Whack-A-Doodle.
Take Scientology, for example. Here's a religion that has extra-terrestrial beings, silent childbirth and a relatively casual attitude towards mental illness as part of its basic manifesto.