being a student/coffee shop owner is not easy, especially if you're low tempared person. Your coffee shop may have closed in less than a week. as others have said, customers are always right. when you start a business, you can't frown. once you frown and your customer misunderstood, I think you should just shut down because it will surely go viral and your business will surely fall. but what if... you met Mr. Hot Espresso guy? The man who always tipped big. hahaha who wouldn't enjoy that? maybe we'll all be happy with that because it's money. no one says no to money, especially if it's big. meet Erich and James, the Mr. Low Tempared coffee shop owner and The Mr. Hot Espresso guy who always tipped big.