I'm going to refuse to get an old man a refill at subway because I didn't hear him the first time he asked
Why did you not ask him to say it again?
I'm always in a rush when I'm on my way to class. If he would say it slow enough then I'd probably get him a refill
It would be a courteous gesture to at least ask him to repeat himself. Ignoring him is rude and it's common to ask a person to repeat themselves if you did not catch the information the first time.
Rolled my eyes. Whatever, he's talking too slow.
When you are older and have less faculties than you do now, I'm sure you would appreciate younger people having patience with you when you need help with something, right? So maybe try giving him the benefit of the doubt.