2 things come to mind.

"You can't fix stupid". (from Jon White, i believe)

"Don't argue with an idiot, they'll drag you down to their level and beat you with experience". (author unknown)

Really though, the best we can do is feel pity for them (yeah, hard to do, i know), and move on with our heads held high. At least we might show any others around and observing these situations, that we are solid and sensible citizens of society.

mj (Cassie)