If you through flour on a fire it ignites. It is fun to see the puff go up, worked in a pizza place, Manager would get bored. His way of having fun. So the vietnam story is WAY off base.
Love home remedies. For beestings my mom used to mix somthing like baking soda and Lemon? then put it on the sting. Worked wonders. wish i knew what that little concoction was, could use it on my kids.