Disappointing Affirmations - People are Awful Coffee Mug From the viral instagram account and best selling book, Disappointing Affirmations, Unfollow Your Dreams. Best selling author Dave Tarnowski delights us by hilariously countering the culture of toxic positivity with a realistic take on a disappointing world where failure is always an option, but that’s okay! Now available as a coffee mug! Ceramic Mug. Dishwasher Safe. Microwave Safe. There is an 11oz and 15oz mug size to choose from.