Firstly, thanks to everyone who’s contributed so far I appreciate it. I would say there seems to be some mistaken assumptions and no questions.

Piece of mind doesn’t translate to me as screaming match. I just used my words but It is natural to be upset when challenged. I didn’t raise my voice he did. I said within earshot not the whole bus.

If you think it relates, I suffer from an invisible degenerative disease.

Stare at them and mumbling is not my preferred means of conversation but my illness presents sometimes that this is the only way I can communicate.