In their older years, my parents were cheapskates. When I visited them in their Southern Texas retirement community, they always were delighted to share their favorite places, those with senior discounts, dollar-breakfast specials and cheap all-you-can-eat buffets. The same proved true when buying unleaded: I thought it odd they would drive six miles round-trip to save $0.05 a gallon. After my father filled his tank, I asked how much he had put in. Twelve gallons, he answered; he just saved 60 cents. I pointed out it took us 15 minutes to save 60 cents, so he was paying himself about $2.40 an hour…just a little observation. His answer was: 1) he’s retired, so he likes saving money, 2) polite people keep their math to themselves, and, 3) nobody likes a smart ass.