I like most of the so-called "stupid" norms and "silly bull".
Come to my house? The hat and jacket and shoes all come off, or you don't come in. No exceptions and I don't give a rat's ass who you are. I don't care what you think about it either. Follow *my* rules in *my* house or you aren't welcome. I'll follow your rules in your house.
Wearing a hat indoors (and it's not my house because you wouldn't have crossed the threshold)? I'll comment about how inappropriate it is until you either take it off, walk away, or try to hit me.
I shake hands with people when I first meet them. If they either don't shake or it's limp, I judge them immediately and unfavorably. I consider refusal to shake or a limp shake to be a clear indicator that the other party is lacking in confidence or has inter-personal issues and I don't have time to waste on people like that.
Don't want to make eye contact? Well then, we don't need to be talking. Avoiding eye contact means that you're either guilty of something or lacking confidence. And I already talked about that.
I don't like it when people have their hands in their pockets except to retrieve money or a phone or whatever. I mean, come on, you're standing there with your hands in your pockets... are you playing with yourself? You got a palsy and don't want people to see? Are your hands deformed? Or are you just lazy and uncaring and have nothing better to do?
I hold doors for people if they are close enough behind me, and I expect the same in return. If I hold the door for you, I expect a 'thank you' which is no more or less than what I would do in turn.
On the other hand, I refuse to give up my seat. To anybody. I don't care who you are or what you do or what your condition is. If I'm sitting in a seat or occupying a space, there's no way in hell I'm moving to let somebody else have that spot.
The underlined parts starkly contradict the non-underlined parts. You're coming across as rude as hell to top it off.