I bought some DE to spread in the coop for fly control. I was carrying the container (large Tupperware w/lid). I had a mask, just had it around my neck, not over my mouth and nose. I was planning on putting it on correctly when I got ready to sprinkle. Well, the chickens and ducks thought I had food and surrounded my. I tripped, the DE flew from my hands. The animals ran. I stupidly tried to catch the falling container and instead, the lid popped off. I got covered with DE. Of course, I inhaled some. My throat is very scratchy now. I showered, washed my clothes, but this scratchy, irritated throat is getting to me. I keep coughing, but nothing is coming up. I guess I needed to vent, but I also want to warn everyone. It is best to wear your mask from the time you go near the stuff, until you are back away from it.