I pushed the close door button on an old lady with a walker.
Why would you do that to an old lady?
I was in a hurry.
It was very rude of you to push the close door button when someone was trying to get on the elevator, especially since it was an elderly person. Be more considerate when using an elevator.
I don't care.
It's obvious you don't care, but you should. Elderly deserve to be respected. You should volunteer with the elderly to show more respect to them.