There's something rather sacred about a coffee cup, its loyal, it's low maintenance and it holds coffee. It takes a long time to find the right cup for you, holding enough for you to drink, but not so much it gets cold before you need a refill.
Low maintenance is critical, all you need to do is dump yesterday's dregs, give it a fast swish under the faucet and then add coffee and press on with pride. There's an unwritten credo, you don't mess with somebody's coffee, and that includes messing with their cup.
Back when I was a section chief in a jet engine shop my coffee cup apparently frightened people, it was very well seasoned, rather like the one you see here, the ceramic was all sealed up and there were no odd flavors that could creep into the sacred beverage. Some people don't understand seasoning a coffee cup, they put a hazardous waste label on the cup thinking I would get their message, it apparently eluded me and one horrible day a young airman named Ashley took my coffee cup down to the break room and violated it, with soap and a scrubby pad and then to add insult to injury she put it back on my desk, upside down on a napkin, and to compound the blasphemy she not only dumped out half a cup, she didn't refill it before she brought it back.
Fortunately I was an adult about it, I chased her down, tossed her over my shoulder and tossed her in the shop sink and under cold water for a while. It was the best I could do, apparently some sissy had ruled that a firing squad was excessive in these situations, so a dunking was the best I could do. A few days later the cup was knocked off the desk and broken, I maintain it ended its own existence from shame.
I personally think that the reason we see so many people grievously ill from germs and bacteria these days is because we hide from the little buggers. I spent most of my career working out on the flightline, roasting in the summer, freezing in the winter. You learn how to eat a sandwich with greasy fingers and not leave a fingerprint on it, and you learn to wash your hands before you pee. Fingerprints, and there are places you just don't want to leave grime.
When I went to the shop I was talking to a few people about the plan for the day when a fly buzzed into my coffee as I was raising it for a sip. When I hooked it out with a finger, flicked it away and kept drinking. I thought they were going to blow chunks. Lets get something straight here. If I worried about dust and grit being blown in my food, or bugs landing in my coffee I'd have been in a race to see what got me first, starvation or dehydration.
All of this cringing over cooties is making the little suckers more and more resistant to the stuff we make to get rid of them, and all hiding from them does is lower your immunity to them. Interesting statistic, during the Influenza pandemic of 1918 most of the victims were in their twenties, because all of the old farts had been exposed to everything already. A little schmutz in your life is a healthy thing, so's a well seasoned coffee cup.
(Sorry this is early, it looks like I'll be out of the pocket all day Wednesday and I don't want to miss another one)