Waiters and waitresses HATE to NOT be tipped in a world where it's their livelihood. And studies have shown that this leads to racist, classist, and sexism within the service industry.

- Studies show that non-caucasians receive worse service because they are perceived as likely to tip less.

- Studies show that a high class restaurant server gets more in tips than a medium class restaurant, even when the food and service is of lower quality.

- Studies show that men often get tipped less than women for similar service.