Rain

The flashy, thunderous announcement of your unexpected visit on the hot summer day scares the crap out of the pigeons in the square - cannoning them into the air - but soon they are diving and gliding as they discover that you are cool as you high-heel dance the tarry breath out of tired and dusty roads. But in the grasses of the park the sudden deluge causes workers to abandon their burdens, and confusedly hasten to save nappied babies and the queendom from flooding. The sun worshippers temporarily abandon their religion as they unbow their heads for a sparkling new baptism but as their fiery god reappears, you take flight, confetting the air with your one-word calling card: petrichor