The realisation that you are blessed compared to what other people have to endure in the world around you. A warm house, full belly and the promise of a peaceful day is an idea of heaven for our less fortunate brothers and sisters.
Petty crime in general is ridiculous. Don't get your 'phone out in public. Don't take your eyes off your bag in a pub. Keep checking your pockets to make sure nobody has pickpocketed you. People walking out of shops with armfuls of stuff...