American server here. Yeah, if I provide shitty service, you shouldn&#x27;t have to tip me. Personally, as someone who has served and has gotten paid less than &#x27;minimum wage&#x27; (service industry is different in some states), even if I&#x27;m the one getting shitty service, I leave 2-3 dollars on a $60 bill. I understand shitty days and putting up with hungry people. But it definitely is a culturally economic thing too. So if someone provides excellent service, or I see them as an extremely hard worker toward the guests around me, I leave them extra. Although I definitely agree that the tip should be included in the menu items and servers should be paid more than $15 (min wage is $9 where I live) in the more populated cities.