To me, it's the MASSIVELY over the top amount of force that I find astonishing. Anyone can get in an argument and someone gets punched, it happens to even the most peaceful folk. But booting someone when they're down and repeated heavy blows, are just WAY over the top. But then again, there's nobheads everywhere.
When I went to South America, people kept saying, "Aren't you worried it's dangerous over there?", "You're mad going to Colombia, you'll get kidnapped!" but when you say, "I'm off to Manchester/Leeds/London this weekend" no one asks if you're worried it's dangerous, despite shocking incidents right here at home
The worst thing I've seen over here was someone getting glassed, over there the worst thing that happened was getting ripped off for drinks by a stripper. And even then, she was worth it...