I was walking outside on a hot summer day, when I suddenly got hungry and walked to a restaurant to eat. I tried to go in, but I was rebuffed at the door. The server pointed to a sign outside that says "no shirt, no shoes, no service." I got my shoes and went back to the restaurant to enjoy my lunch. 5/8 of the way into my meal, 2 people came in. Both of them got a seat with no problem, but I noticed that one of them had no shoes on. I politely informed a passing waitress, but she just looked in that direction and then laughed at me. I thought that meant it was fine to take my shoes off, but the same waitress came back and asked me to put them back on. I asked why the other customer got special treatment, and that degenerated into an argument, culminating in me getting kicked out of the restaurant.
Why was the other customer allowed to eat with no shoes on?
5/8 seems like an unusually specific number, doesn't it?
Why did I go outside without any shoes on?