Sitting on the underground today. The guy next to me, the guy opposite me & the guy next to him are all plugged into their headphones & music. I’m being deafened by the leakage from the guy furthest away from me. He’s unaware of the intrusion as I stare at him, stop after stop. Eventually he looks at me, my face a picture of resignation. He reads my plea & simply mimes ‘sorry’& turns it down immediately. I mime back ‘thank you’. We smile & everyone’s happy.