I see it all the time at my work. But it must be the type of place i work in. But in the supermarket it doesnt happen all that often. When im loading my stuff and i can see someone behind me with a big basket i will compact my stuff so they can put their basket up. My DP is very rude he doesnt do anything like that... doesnt hold doors open, nothing. But i was brought up to be courteous of other people. As for traffic Canberra people are horrible, they dont even know how to merge into one lane.. and theyre great for cutting each other off..