When seeing this picture of teakettles in Death Valley, my thought went to the idiom of the teakettle and the pot (i.e., "the pot calling the kettle black"). Seems the pot is mocking the kettle for a little soot, when the pot itself is thoroughly covered in the same.
"Oho!" said the pot to the kettle;
"You are dirty and ugly and black!
Sure no one would think you were metal,
Except when you're given a crack."
"Not so! not so!" kettle said to the pot;
"'Tis your own dirty image you see;
For I am so clean – without blemish or blot –
That your blackness is mirrored in me." - Maxwell's Elementary Grammar, copyright 1904 Could it be that we humans need to worry less about fixing others,
and spend more time taking care of ourselves and fixing our actions? Just saying!