Help! I Think I'm a Bad Tipper. What Are the Rules for Ubers and Coffee Shops? by Julia Glum I don’t believe in the concept of guilty pleasures — people shouldn’t feel ashamed of anything they enjoy — but if I did, one of my guiltiest would be taking Ubers. Not the brand Uber, specifically; I use that as an umbrella term for all the ride-hailing apps targeted at city dwellers like me.