I'm on my fourth serving of ice today. I chew it at work, you know. I've asked my neighbors, and they don't mind since I do it with my mouth closed.
Sometimes, if I'm hungry, I'll sprinkle a tiny bit of sugar over the cubes before I chew them. It makes it more fun.
I am wearing headphones in addition to my phone headset (which covers only one ear). My boss keeps coming up behind me to talk, and I'm ignoring him completely.
Between mouthfulls of ice, I chew the occasional altoid. Wintergreen, no less. I like them.
I have three more hours before I can go home and get drunk.