I'm playing a Pally right now, and I play him as more of a fairly strict British Religious-School Teacher than anything else. He works endlessly trying to make the other party members (and many NPC's) work harder, speak correctly, behave properly, etc.
Some things I can remember...
(To the CHA 6 Rogue who was trying to intimidate someone and rolled a 1)
"You'll notice, sir., that the rejoinder of '...and stuff' destroys the meaning of virtually any statement".
(To an imp)
"Peasant of the underworld, flee before those who fear you not!"
I'm sure there have been others, but my memory is shot before my coffee.
-Tatsu