It is a sure sign the you are upper middle class if you are sitting there typing, wearing only your underwear, your glasses, and five days worth of beard stubble, while drinking cheap vodka straight, at 2 o'clock in the afternoon, from a McDonald's Happy Meal cup that once contained your son's Orange Fanta, and occasionally picking bits of the microwaveable burrito that you at for lunch from your teeth with a folded up piece of cellophane from a cigarette package.
That's more akin to either UC or dysfunctional WC actually (yes the top and the bottom have certain things in common sometimes).