Drinking Coffee with a Straw

Recently, I have noticed an influx in the number of people who drink coffee with a straw. I found out that the purpose of this action is to avoid staining the teeth. That's exactly why I drink red wine, whiskey, cooking wine, and mouth wash with a straw...so I don't stain these pearly whites. Also, I have begun eating ribs with rubber gloves, petting dogs with a stick, and shaking people's hand with a baseball bat - to avoid stains.