Playing with matches.
Building fires in improper places.
Playing with guns.
Getting off cars before they stop.
Throwing things like banana peels in the street.
Being too interested to watch for open manholes.
Reckless roller skating in the street.
Teasing dogs, or trying to catch strange ones.
Leaving scalding water where a child may fall into it.
Leaving rags or linoleum with upturned edges.
Leaving objects on stairs and in hallways.
Trying the “medicines” in the closet.
Playing with electric wires or lights.
Playing around railroad tracks and bridges.
Other examples will occur to you.
Found in The Girl Scout Handbook, 1931