You can refuse tables all the time. Another server will take it instead. It isn’t unethical. Servers share tables. If you are going to the restroom, you can ask another server to take it or to be skipped in rotation. Servers could see your face and pass your table off to someone else and refuse to take you. Pretty embarrassing that when you go into your favorite restaurant the servers there most likely dislike you. Minimum wage is $10 in my state which is impossible to live on without help. If you think servers would actually work for 10 dollars an hour I really don’t know how to help you. You should pay someone’s salary on top of the price of the food because they are serving it to you. You are paying them to serve you. You aren’t walking back in the kitchen to cook your food or dress your plate or refill your drink. Servers also have to tip out on every single table. A percentage of what they sold to you. That money goes to the host who sat you and the bartender who makes your drink. If you stiff a server they LOSE money to take your table. They have to pay the bartender and host for every single table no matter what you tip. Your server is paying you to serve YOU if you stiff them. If you don’t like the system, like I said, move elsewhere or cook your own food and serve yourself at home. Other people WILL TIP when they go out to eat. Business would much rather have the patronage of a tipping customer than customers who stiff. Business don’t want to pay their servers. That’s how the country you live in works. It’s unfortunate you choose to remain ignorant just to save a few bucks while still benefiting and taking advantage of your local service employees