If Mendy's Grand Central Terminal a (Jewish) merchant owes you $0.75 change, but only gives you $0.25, and there's a long line behind you, do you ask for the rest of your change, or do you just forget it?

probably would depend on my mood and if i was in a hurry. i've done both before

Depends on the mood and if I need quarters for meter/transportation, etc.

I've always been taught to count my change, so yeah, I'd say something.

They owe it to you. You may say it's 50 cents, but you had to work to get those 50 cents. Not only that, at the end of the day if the receipts don't add up- either too much in the drawer or too less- then what?