My brother and sister in law brought back a stray from Japan that had been running the streets - it was amazing what she could eat. I think she's almost 20 years old now, and still eating every horrible disgusting thing she can get her mouth around.My dog was a stray and grew up on the steets of Mexico before I adopted her. Funny you say this because it's exactly what I thought when I fed raw for the first time, I just imagined what she must have ate to survive! She transitioned to raw with virtually no problems or diarrhea.
Hope that stray guy you eep seeing is able to find a nice home!