On a train. A man got on and sat across from me and started playing a game on his phone quite loud, so sounds of cards shuffling and pinging constantly. I put up with it for a few minutes hoping he was going to realise it was loud and then asked very nicely and politely if he minded turning it down.
He replied, "what?" with a scowl on his face. I repeated myself and he spat back in an aggressive tone that he didn't know how to turn it down. Usually, I'd offer to show someone, but I could tell he wasn't a nice person. He was in his uniform too so not setting a great example for the company he works for.
I hoped he'd then turn the game off, but nope, carried on regardless. I was busy working on a stressful piece of work too. Not his problem but I hoped for at least a quiet enough carriage to concentrate. I eventually moved and told him I was doing so because he was antisocial and rude.
WIBU to challenge him?