I volunteer at a Boxer rescue thrift shop once a week. You would be astonished at the trash people donate. For get dirty/dusty. Even used dirty underwear if you can believe it. Even though it is for the dogs and all proceeds go to their care, there is a limit and we do have to pay for the trash we end up throwing away. We are a small shop so have to limit what we can accept, no large appliances, TV's or mattresses, so what do some do, drop it off in front of the shop, sometimes in the parking lot, while we are closed. Now we have to take funds from the dogs to dispose of their crap!! Very frustrating!!