Here's one of my own:

My mother-in-law took my wife and me to her local supper club for dinner. (To folks outside the upper Midwest USA: "Supper club" is rather a rather quaint term. It is mainly associated with small towns -- the kind of towns that have only 2 places to eat: a cafe on main street that serves only breakfast and lunch, and another fancier place a little ways out of town, maybe in a more scenic location. The fancier place would be called a supper club. They offer mostly steak, potatoes, and salad bar, but you usually get a cloth napkin and a candle on your table.)

This place had a self-service coatroom. I noticed the hangers were the kind you sometimes see in motels: The upper part forms a complete ring around the bar, so you can't remove it. I decided to skip hanging up my coat, and wear it into the dining room instead. I said, "If they don't trust me with their coat hanger, why should I trust them with my coat?"

(I didn't think it was anything to brag about, but my wife and mother-in-law thought it was awfully clever.)