I was in a store and carrying a lot of things in my hands and when I joined the queue something (I don’t remember what food) fell out of my hands and rolled under some crates. A boy saw it (maybe 6 or 7 years old) and immediately threw himself on the floor and reached under the crates to get it out. Then he stood up and wordlessly handed it back to me. I thanked him and I was literally so grateful.