Bad habits, manners and attitudes

One of the grottier habits that I've noticed in London is spitting. People of all ages and backgrounds think nothing of spitting on the footpath, road and even the Tube platform. Personally I think it's vile and unnecessary, yet no one here seems to frown upon it. Another rude trait is carelessly bumping into people. This happens a lot when walking down the street and the perpetrators don't even try to move out of your way (they expect you to move out of their way) and when they bang into you just keep going without a care ... no hint of apology, not even an acknowledgement that they've just run into you. This arrogant sort of attitude really irks me. Courtesy costs nothing yet the bad manners and habits of some leaves me wondering just how civilised a society we are.