Well it was just one of those things that just tip you over the edge.
I just went to a well known supermarket to do a half-weeklyish shop. I always use the scan as you shop thing because I love just going in, headphones in and getting the shop done without having to chat to anyone.
Well, I finished my shop and went to put it through and I was selected for a random check. Let me just stress right now, this is absolutely fine. I'm happy with the random checks. I saw on the handset it said five items would need to be scanned so I stood back at an appropriate socially distanced distance while the young man started scanning some shopping.
Next thing, he starts scanning way more than five items. I think "oh shit did I accidentally not scan something so it's come up with a problem?!" 
So I said "is there an issue" and he said "no I would just feel more comfortable if I could scan your whole shopping"
I was
eh?? I said, more comfortable? Why do you need to scan it all is there a discrepancy? He said "no, I would like to scan your whole shopping as I'm well within my right and I think I would feel more comfortable to do this rather than just the five items"
Omg i got so flustered. I asked him was I making him feel uncomfortable? He said "no I just want to scan your whole shopping, I would feel better if I could do that and once you pick up the scan as you shop handset you enter into a contract statin we can scan your whole shop"
So clearly he thought I had been on the thieve but after he rescanned and re bagged my WHOLE shop there were no issues, I had scanned everything and he sent me on my way.
Ive had a terrible week (long story, won't go into it) and tbh it was kind of the straw that broke the camels back. So I went to the car packed in my shop and sat there and had a little cry. It's bloody pathetic of me I know. But he totally singled me out for thinking I looked like I would shoplift. I was in a (what I thought was on trend) tracksuit bottoms and oversized sweater from Zara but now looking back maybe I looked a bit scruffy? My hair was scraped back and I certainly had no make up on although I was wearing a mask.
Anyway I know this isn't AIBU but would I be U if I asked the head office if this is standard procedure? It really embarrassed me and has put me off going back tbh. I totally understand the random checks of 5,10 items. But for a cashier to decide just by looking at me he should rescan my whole shop, it just felt too personal.
Although i mentioned my head isn't in a great space right now so maybe I took it more personally than I should.
Please be kind, I've already cried once (in a supermarket car park) today 