In other news:
Knives are sharp
Sticks can have your eye out
Play safely kids.
In my late dads world almost anything could have a eye out, some examples:
Don't be kicking that beach ball at your brother you could have his eye out.
Don't be throwing that paper plane you'll have somebody's eye out
Get out the kitchen while Im cooking one splash from this frying pan could have your both eyes out, and where would you be then?
Playing a board game, Don't throw the dice so hard if it bounces it could have someones eye out.
these are all things my dad has said.