You lot are really brave to be entering these buildings I have to say. Is there some kind of safety gear that you guys wear? Like those Caterpillar boots or something? or just your regular footwear? haha. I'd be scared to death of stepping on a needle or something.
Also, I can't fathom how even homeless people can "live" in such filth. I know they often don't have a choice, but one could at least clear up the space and seek out fresher beddings (from recycle centres and what not). I guess if you have a drug, alcohol, mental health or medical issue, that may add to it.
Regular beat-up trainers, I have stepped on a nail once.., but it didn't come all the way through.
Those dirty bags I see everywhere, it's like they have babies or something.