To the head of a large motor company in the midst of a big business event: "Thank you (for fixing my collar). I changed my shirt twice on the way over here tonight." Like that wasn't enough, I had to expand on it. "I wore this shirt to work today, but changed as I was heading over here. Then I realized I'd popped a button off and had to go through it all again."
To a very serious request for suggestions for volunteer activities for foreign exchange students on the local mommy group board: "I suppose it would be inappropriate to suggest that the students volunteer to put sprinklers in my backyard, right? How 'bout a patio cover? Playing with my kids so I can get something done around here? Seriously though, I hope you find what you need. I would love to host, but the spare bed we have is a sleeper sofa in the loft. I've already seen my father-in-law in his underwear this year and can't risk any more trauma."