I really value politeness. I try to be polite to everyone, but I don't adhere to it at all times. I am a firm believer in the hand-written thank-you note, the timely RSVP, etc. So when was watching a rerun of The Office recently, I cracked up when I heard this quote by Andy Bernard:
You give me a gift? BAM! Thank-you note! You invite me somewhere? POW! RSVP! You do me a favor? WHAM! Favor returned! Do NOT test my politeness.