When my oldest boy, who is now 18, was 4 years old, he had trouble properly wiping himself after #2. One day we were at the local KFC for dinner. My son needs to go the bathroom, and since it was well in view of our table I said go ahead and go.
About 10 minutes later the door flies open, my son is standing there in the doorway with his pants down around his ankles and yells "HEY! I NEED HELP IN HERE!"