An elderly couple catches sight of their daughter. There are long, long hugs. Mum hides her tears by straightening her daughter’s collar, Dad does the same by busily wheeling the trolley away. Daughter does not hide her tears, she lets them flow from wide-open eyes, but slows them by smiling tight-lipped at people in the waiting crowd. And the tears seem to be as catching as yawns; I am one of the grown men clearing my throat, my fist to the bridge of my nose. Then, recognising a shared emotion through the tears, we nod and smile at strangers. And then we all move in our own directions.