I got refused service on Red Bull when I was 14 because "you might go outside and mix it with vodka". My response was that I could do that with Coke, or lemonade, or orange juice, and as long as they didn't sell me the vodka it wasn't their problem.

She got the manager up, because I refused to leave without being sold my Red Bull (yeah, I was a cocky teenager. We've all been there, I'm sure). He admitted that the reason I'd been given was wrong, and said that the real reason was that I might be diabetic and not know it.

I might be diabetic. At 14. And not know it.

Again, I cited Coke, lemonade, lucozade and all of the sweets marketed at and sold to children. He told me that they wouldn't be serving me, and that I had to leave the store. I asked why, and he told me not to talk back. Then he grabbed my arm - hard enough the bruise - and marched me out of the store.

I went home and told my mum. This was our local store, where we did our weekly shopping. I have two younger brothers; my parents spent between £80-£100 in that shop every week. She told him that she would be taking her business elsewhere, and did. Twelve years later I still walk past that shop once a week when I go to visit my mum. I fully refuse to shop there.

Moral of the story? There isn't one, really. I just thought I'd share.

EDIT: As some people have pointed out, I sound like a complete douche here. That's fine. I was 14 - I probably was a complete douche, and on the flip side it's quite nice that the manager actually stood up for his employee (even though she was clearly in the wrong). It's also kind of funny -as somebody mentioned in the comments - that I was being a cocky prick, but as soon as he touched me I went home and told my mum. Just to clarify - I'm now 25, and this isn't my proudest moment. I just wanted to share.