If you look at stray dogs on the road ( which is a very common sight in India, as per statistics, more than 3 lakh homeless stray dogs live in Bangalore ) you would find lot of similarly between them and the people who don’t have much to do with their lives.
They roam around, go from place to place, bark a lot, do useless things like chase cars or bikes, and most important of all, through their presence bring discomfort to people around them.
Just like the stray dogs, the best you can do is to stay away from them and try not to make them angry ( which may actually be a very difficult thing to do – because you have no idea what triggers their anger )
I find most of the stray dogs frustrated most of the times and a slight disturbance will trigger their angry passions.
How much ever you try, there may not be much to learn from them. But then once in a while they teach you some important lessons as to how a human being should NOT be.