He's very picky. Coffee should be black, with no sugar, creamer, tofu, kale, or whatever other nonsense hipsters are adding and it must be served hot enough to drink without scalding the top 6 layers off of your tongue. Tea messes with the coffee flavor, so it must be extra strong and the flavor must be either English Breakfast or Earl Grey. Glubnard does not tolerate cold beverages. If he's going to serve water, it must be hot. Yes, he knows that's weird, but that's the way it has to be.
In addition, in the event that one sips some coffee while eating a peanut butter cheese sandwich, Glubnard insists that excess peanut butter residue must be wiped off of his rim at once. He can be quite insufferable when one ignores his demands.
That reminds me. I need a refill to go with this sandwich.