People who don’t hold doors open for others and let the door swing back into someone else’s face, leg, arm. Likewise people who don’t say Thankyou when you hold the door open for them.
People who don’t respect the space of others. Yes, I’m talking about you with your IPod on too loud on a morning when you’re sat next to me on the tube. Or you, nattering into your your mobile phone as you walk through a doorway, clearly too busy to hold it open so that it swings back into someone else’s face, leg, arm.