In a moment of implicit intergenerational evolutionary discontinuity, the author of this sign at Macquarie University playing fields has decided that a child is not a person.  Then there is that ominous claim of a removal right, and the disproportionate burden of 'all' children on 'an' adult.

While this discontinuity from Darwin's thesis is strange, the Author of Signs goes on to make a severe connection between the BBQ and the tennis court lights, demanding an embargo, which makes one imagine a history of a preciptious descent into blackness ( though maybe it was the marauding cliff face that  roams the playing fields) and points, players, balls and racquets lost, while the snags sizzle on.  Also I wonder about the see-saw effect in the supply of volts here.