If you were in a rush, would you?

I'd let them. one it's just being nice but also it would give me time to get all my things up on the conveyor belt. That way I don't hold anyone up while I unload and then I can watch as they ring it up. The other person gets to go through and I have actually saved a bit of time. Works out well all the way around.

i would politely say my prob and definetly allow me to shop

If there are one or two, as you said I would definitely allow them to complete their formalities. If there are plenty, I do not want to be a watchman at the store. Please put your response by pressing response key rather than ADD COMMENT key. This will enable me to reach you through my comments.

I have done that before. When they have only a few items and my cart was full I would tell them to go ahead. By the time they checked out I would still be putting my things on the counter so why make them wait?

sure my wife and I have done it a couple of times and people have done it for us as well

sure my wife and I have done it a couple of times and people have done it for us as well

If I am in a rush, I probably wouldn't let them get ahead. I'd be worrying too much about how I had to get to wherever I had to in such a hurry. But if I wasn't in a hurry and there are just 2 people behind me with one or two items, I would let them go first.