Type 1: you open the door for them and they smile and say thank you, every time.
Type 2: you open the door for them four times, and they say nothing - probably don't even look at you. Then you decide to not open the door for them the fifth time and they insult you for not opening the door.
Which type are you? Do you recognize what others do? Do you appreciate them? Do you SHOW it? Or do you just ignore them, then berate them when they don't kowtow to you?
As far as I am concerned, all the Type 2 folks can set sail on the Titanic II and head north looking for an iceberg.