A man I shared an armrest with

He talks to a woman from his village about his 96 year old father, who is now on his own after his sister died last fortnight. His father's new neighbour is too noisy, screams at her children all night. There is a vibration in his throat - I recognise it as panic, as concentrated sadness. I only notice he's left a bag of Christmas presents behind after he's left the train.