I am always interested in the people I meet on the streets around Temple University Hospital and the Lewis Katz School of Medicine. I caught up to Joe Miller, 60, on Erie Avenue, just as he was steadying this load on his bike. Joe cruises the streets looking for things he can sell as scrap metal. He said he found these empty aluminum cases in the trash outside Temple University’s music school, and was on his way to sell them down on Hunting Park Avenue. “I guess the old horns don’t work,” he said. Cruising for scrap is only one way he makes a living, he says. “I do a lot of painting, and cut a little hair,” he adds. I watched him mount up and start pedaling. After a wobbly start on a very wide sidewalk, he steadied himself and headed west.