It has been a loooong school holiday. I mean three months type long (not UK).
Picture the scene:
You are stood at the end of a supermarket till about to be served, with a screaming toddler in your arms and a five year old who is trying to sneak whistling chuppa chups into the trolley. Other children are screaming all around. It is a tiny supermarket and only two tills are open. It is the end of the day, people are finishing work, they are getting a bit peckish, it is home time for everyone. We all want to be out of that hell hole.
A woman appears from nowhere and shows you and everyone behind you in the long queue her two items. She stands aggresively between you and the person in front (your items already loaded onto the conveyor) and 'asks' if she can pass. Do you:
a) give an exasperated sigh but say yes
b) of course let her pass, what is an extra five minutes of your life while she is dropping change and you hold said screaming toddler who is now trying to open the rogue chuppa chups? Peace and love.
c) lose your shit, and remind her that other people in the world exist and maybe the screaming child would also like to get home.
d) none of the above. I am already smugly at home with a slow cooker full of nutritious food for my perfect family.
Guess who I was 
She then proceeded to try and bond with dd who is precariously balanced in the bagging area with a lolly while I try to cram shopping into the bag at high speed. Because what really helps with a queue jumper is having them get in your way while you are loading your shopping too. So in reality they gave also saved zero time because they are stood talking to you. 