I am expecting to hear I am being unreasonable and a snob snow flake but hear me out.
I take my DD (23 months old) to a dance class suitable for 18-24 months old. She really enjoys it and is a very relaxing atmosphere as they are only little girls learning how to dance to rings rings roses. We've been going there for almost 6 months.
There is a particular song where they all jump on a numbers floor mat and we all queue up for that. Every child goes twice and it's quite fun. We do this every single lesson.
So there I was with my DD in the queue. She kept running away and other kids went in front of her. No problem at all. As we returned to the queue for the third time a new mother (it was her first time there) comes to me and say "this is our spot" and goes straight in front of us. I did not notice she was there as it's a quite messy queue with parents + toddlers around.
Now I just cannot stand her. Maybe it's my nerves + hormones + exhaustion but I presume as it's only a informal class you should not point that out? It's not like we're queuing up inside a bank, hospital, or any other queue situation. Notice that I would never do it deliberately but AIBU to think that she should have let us (or anyone else) pass? Just out of curtesy really.
Ok I'm ready to get flamed here but maybe someone gets my point 