The Homeless Steal Oxygen
This AP article takes me back to when I lived in Northern Virginia, where libraries act as day-care centers for the homeless. They hang out quietly because if they get kicked out they lose the benefits of nice chairs, clean bathrooms and stuff to read. They didn't smell as much as it was impossible to breathe near them. It was like being underwater.
Re: the homeless, many need and can use help. Others are crazy and should be institutionalized. There's also those who choose homelessness. I'm serious. It's a life of scrounging and danger but some prefer it over work and related responsibilities.
I see a number of them scavenging for recyclable cans and bottles. If other trash had a cash value the homeless could make more money and the streets would look nicer. Let's start with cigarette butts and fast food containers.
The relationship between the homefull (groupers) and the homeless (gobies) can be symbiotic, hopefully of Mutualism (scroll down!) and not Commensalism or Parasitism. That would be bad.