The only hat I really don't remove indoors are my dreadlock tams. For one thing, it is troublesome to stuff all those locks back in there. For a second thing, I have learned that people tend to FREAK OUT when I (or any dready headed goon for that matter) yanks their tam off and the explosion of dreadlocks happen. Dreadlocks fresh out of the tam are like a dog fresh out of a locked room. Happy to be out. They stick out everywhere in all directions. This seems to unnerve people, so I tend to leave it on for their sake. This is very weird for me, as I am used to removing my hat indoors.

I own a few baseball type hats, never worn them much, can't wear them at all now with my fat ropey locks. I do however, still wear hats like these.

I also say Sir or Ma'am (or try to) and also try to open doors for ladies. Even if I get lectured for it.