Just wondering if this happens to others (surely it does) and how you handle it.
You're at the checkout (not self serve, the kind with a checkout operator) with a full trolley of groceries waiting for your turn to load up the conveyor belt. You've been there a few minutes.
You see out of the corner of your eye that there's a person with a hand basket lined up behind you. The self serve checkouts are not at all busy, yet there they are, behind you.
It is obviously a nice gesture to let someone in front if they just have a handful of items, but this person could easily pay for their items without any waiting at all through the self serve.
Do you pretend they are not there and go about your business, or feel obligated to let them in front of you?