Aunty Acid Funny Extra Large Mug, 20-Ounce Jumbo Coffee Cup, Hilarious Gag Gift for Office Coworkers, Do Not Disturb XM27898 - Tree-Free Greetings Jumbo 20 oz capacity ceramic mug with comfortable full-sized handle makes this the perfect mug for coffee, tea or soups Dishwasher and microwave safe. BPA free and Proposition 65 compliant. Aunty Acid delivers a daily dose of sarcastic, witty, comical, humorous and sassy adult humor to both men and women. This unique cup is a great addition to your desk and will be admired by co-workers This coffee mug is sure to bring a smile to your face and makes the best gag, white elephant, christmas, or birthday gift for your co-workers, boss, friends and family. Perfect for any morning routine "Instead of a sign that says Do Not Disturb, I need one that says "Already Disturbed, proceed with caution" by The Backland Studio