Clyde, you have to be aware that some of the most hazardous items may not be things you can see. Crack/meth houses, 29 cats/urine in the floors, mold, asbestoes, even the dust in the air from one of those rat traps is being sucked into your lungs. We had a new guy get a staph infection during a trashout and ended up in the hospital. Gotta be smart.
AHH, put 2 cigarette filter in your nose an a clothes pin...an get'er done.