LOL, my boys are always drinking out of my glass. Elvis sometimes washes his paw in there, so I have to be careful.
One of my friends said that I should get those sippee cups that they make for toddlers. You know, the kind with the lid with a spout. Can you imagine, someone comes over and I offer them a drink in a sippee cup? At least the cats won't embarrass me by sticking their heads in people's glasses, lol!