My first ever was my worst ever.
I had a horrible manager that in hindsight, I realise was absolutely out of her depth. And she hated me.
This was at the recently robbed Tesco Express, although it was called Happy Shopper when I worked there. I fucking hated it, and dreaded every Friday night, because I had work the next morning, and my boss was a nightmare.
This is how little she thought of me. One day, I'm returning from a break and she asks "Paul, did you take this?"
She's got a glossy bit of paper in her hands. Someone has clearly used one of these new fangled inkjet printer to make their own low-res £20 note. There is no watermark. There is no sliver of metal running through the fibre. It's shiny, FFS. And besides, it lit up like a Christmas tree under the UV scanner when I later checked.
In a rare moment of defiance, I asked her if she was joking. Dippy Kevin, one of her faves, took the note. I ended up at ASDA Southampton, permanently amazed that people weren't being overbearing micromanaging twats the whole time.
In my former manager's defence, she steeled me for the world of work. I reckon I made a bad first impression she never got over. Never made that mistake again.