On the weekend dh and I took dc to a local fair. Ds wanted his face painted and as the queue was quite short we headed over.
There were 2 women with 1 child each waiting. As it was approaching her turn the woman in front of me announced loudly to her dd that they would go off to another stall and be back when it was their turn 
. She then returned with 4 other children whose turn it was now apparently. I pointed out that my ds had been waiting and it was now our turn. I told her I thought it was unfair for my ds to have to wait for these children who hadn't waited in line. She then told me they would be having their turn next as she had been holding their place (although hadn't been) I pointed out that it would have been polite to have let me know.
Now I do realise that in the grand scheme of things this is fairly minor but grated me. I almost never stand up for myself but said 'I'm sorry but I disagree and think you are very rude'.
Arghh it all sounds so petty written down but if you can be bothered with something fairly trivial, wibu or was she?