Naughty kitty steals the coffee!

Our eldest (pet/child) Zak steals the cold dregs of hubby’s morning coffee. The cat has no shame at all, absolutely none. When the mood takes him he will happily try and swipe the food off your plate whilst you’re eating, so this should really come as no surprise. Our only concern is how long has he been doing this, and is it only to cold coffee?!