On the tipping subject… it is just another way the well off designed long ago, to reinforce that the working class worked for them. Originally it was the business owner that they were targeting, to make sure they stayed dependent on the good graces of the elite. After all, back then most businesses were mom and pop shops. Now it is just out of controll, and used to increase profit margins as well as extract more cash from people who have trouble realizing the full cost.