My late grandfather owned a restaurant for much of his life. After he retired, he was amused (or annoyed, I’m not sure which) by the whole concept of eating outside on one’s patio.

To him, you ate inside and performed various excretory functions outside. (When he grew up, the house lacked indoor plumbing; he had to use the outhouse in the back yard.) He couldn’t understand why members of post-modern society prefer to eat outside and excrete inside.