Buggy Rage!?

We've had road rage, air rage and I've even heard of trolley rage. Apparantly buggy rage is all the....er.....rage these days. This is the second case i've heard of this year.
A woman was beaten unconscious infront of her children by a man on a bus after she wouldn't move for his childs buggy.
http://www.parentdish.co.uk/2011/09/...1_lnk2%7C76073

30 years ago the headline would have read "Man beaten to a pulp for hitting woman on bus, police praise have-a-go heros"

What the hell is going on?

There's just too many people on this planet. Where do I get off... :(