You do NOT have to pay attention everywhere you go. Watching out for crime is important, and a smart thing to do, but crime is mostly limited to specific places. If you’re not in those areas, you get to chill out.
Want to get a feel for blitzkrieg muggings? Watch this video.
I like spotting Bad Guys before any trouble starts (in case you hadn’t noticed). Life is much easier if you know in advance what trouble is heading your way.