One thing which is not considered bad or un-usual nowadays. It is people banging their doors to other people's cars while opening. People give excuse that this is normal, I beg to differ.
Car moves on the road, you get stone chips, that's normal. Your paintwork fades overtime, that's normal. Someone hits you while driving that's accident and you have to accept it.
BUT YOU PARK YOUR GODDAMN CAR A GOOD 2-3 FEET AWAY AND THE IDIOT IN THE CAR BESIDES YOU WILL NOT GIVE A SINGLE F***.
I know for many it may sound too nitpicky but it is something which is easily avoidable still no one cares.