When things that always seemed normal to you stick out as hobby acronyms everywhere you go..
(Anytime I see something with the word "Greek" in it, I cringe.. I used to love Greek gyros but they don't appeal to me as much anymore.. And spas that advertise facials always make my mind wander LOL)
When you're about to get hot and heavy with a civvie and you ask him if he wants to do a half hour or an hour