If you make a grand announcement to everyone it may not be outright STEALING but it is still not “yashar”. So all the people who come shopping alone should leave paper or plastic “placeholders” instead? This is like having a ‘sign in for your place on line, as you walk into the store’ system, which groceries don’t have for a reason. Your place on line is reserved when you’re ready to check out, not before. Everyone else waited for that point, you should too!
Goq – this is TOTALLY DIFFERENT than running out of line for one item you forgot! You were done and ready. You’re standing and waiting and idling. You remember something. Why should you have to waste this time idling when you can be correcting your mistake? And why should you move 10 places back when all you forgot is one item?? Its very obvious when someone is standing on line, then turns around and tells the one(s) after him that he forgot something and is running back, that he didn’t do this on purpose to “get ahead”. We all forget, and there’s nothing wrong with using your waiting time constructively by fixing a mistake you made.