Went into a restaurant that offers dine in and take away. I ordered 2 x 10 inch pizzas to take away. The pizzas were fairly expensive to start with (£20) but I was shocked when I was presented with the bill which had a £5 service charge added. When I queried the service charge I was told it was for the ‘chef’s time and expertise’ 😲 Is it normal to add service charge to take away? I’ve never come across this before. This is in the UK