I went to Home Depot and bought some DE and it says on the bag to keep away from pets, etc. It kills bugs, etc. I've seen a lot of posts here saying that they use DE in their coops, even sprinkling some on their chickens for lice. (I think it was lice) Anyway, what can any of you tell me about DE and its uses in the coop, on chickens and anywhere around the house. What does "food grade" DE mean and is that different than the type I have that kills bugs, etc.