The Local Scene 4

Just one question on local life that has kept me amused lately:

How many good things can be in milk from a cow that feeds on trash all day?

As everyone knows cows are a big thing in India. It's the home of the sacred cows. They really are everywhere and you do have to drive around them or wait until they get out of the way.

Not that they're often very well looked after.

They're very skinny and often scavenge their way around the city. I've watched cows eating movie posters off the wall. I've seen one eating a motorbike (at least the non metal parts). There's one cow nearby that every time I see it is lying in the middle of a rubbish heap consuming anything within reach.

Given that they don't really eat beef the question I keep coming back to is how much use would milk be from that kind of cow?