What is up your nose?

One afternoon the boys were playing outside and they came in and said that Jeren had put a rock up his nose. I looked up his nose and couldn't see anything so I figured that it fell out. Well a couple hours later we went to the store and I noticed him playing with his nose alot and when I looked up there was a rock up there. I couldn't get it out with my hands so I waited till we got home to use a tothpick or something. Jesse used his needlenosed pliers to get it out, it was hilarious!