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.
Your house, your rules.
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.
Now that's just being ornery. If it's not your house and someone does something inappropriate, it's not your place to say how inappropriate it is, unless you say so with the intention of providing the other person a useful bit of advice. I don't wear hats, least of all indoors, but if I did and some random stick-up-the-butt came complaining to me about it, he'd be eating his own shoes.
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.
The other person may not like to be touched. I've known someone who simply couldn't shake hands due to past child abuse. May have been a bit wimpy, it's not my place to judge, but it's still another cause than 'lack of confidence' or 'poor inter-personal issues'. The fact that you proclaim not to want to 'waste time on people like that' is condescending, arrogant and ignorantly judgmental.
Also, sometimes it is inappropriate to shake hands. When I'm on duty and I'm called to intervene in a dispute between two parties, violent or not, I will not shake hands with either of them or even accept a hand that is offered. It's simply not appropriate. I'll shake hands with a citizen who'd like to present his hunting rifle for inspection, or a technician who's asked me to help out for a while to keep people away while he works on an escalator, sure, but if I'm on an intervention and there are parties involved who are the cause of the incident, then no. No handshaking. Situations like these simply don't call for a handshake, quite the contrary.
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.
So someone isn't worthy of your time because he or she is shy? Being insecure makes someone inherently inferior and unworthy of your attention? That what you're saying? And don't say it isn't, because it is.
I don't like it when people have their hands in their pockets except to retrieve money or a phone or whatever.
I don't really like the hands-in-pockets stance myself, but if people want to keep their hands in their pockets, fine by me.
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.
Now that I do agree with. Letting a door fall closed in front of someone's face is rude and dumb. Not saying a quick "thank you" is just as rude.
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.
Why? What's the logic behind that? Did you just throw a dart at a number of antisocial behaviours and picked the one you threw? Here you are, banging on and on about how proud and principled (read: angry and overinflated) you are, how you're so demanding when it comes to good manners (which is good, to a degree), and then you come up with this?
So you're on a bus, going to whatever it is you go, work or class or whatever, listening to music on your iPod (probably Die Walküre over and over in your case), and a pregnant woman gets on the bus, huffing with exertion and dead tired. But you're not getting up. The bus has to take some winding roads, and the old lady standing up has all the trouble in the world not to fall. But you're not getting up. A man on crutches with his foot in a cast gets on the bus, his one leg tired from supporting his body. But you don't get up.
If you're going to be judgmental (an attitude I can relate with to a rather high degree), and feel this makes you elevated as a person, then at least set the example yourself. If you don't, all it makes you is a hypocrite, who's even lower than all the people you so despise.