At Hamley's toy shop in London over the weekend. The lady charged me £5 for a 'fancy carrier bag' without asking me. Soon realised before I'd even left the till and returned it and got a 5p bag. AIBU to think it's illegal to sell someone something without their consent? I don't blame her as she was probably doing what she's been told to do but she was a bit shady about it and tried to stuff the receipt in the bottom of the bag despite me asking for it in my hand.
Also it was a generic bag that said London on with phone boxes etc on it and was being sold on the stalls all over Oxford Street for less than £1 and didn't even say Hamley's on it.