I met a chinese girl once and she said she had never saw anyone eat a beef/chicken/pork curry before, ever, until she came to Ireland to study. And nobody in China eats fried rice either.
Chinese / Thai / Indonesian / Malay / Indian food is not the same in the UK as you be served in the country of origin. Chicken Tikka Masala was created for western tastes, and a lot of the herbs and spices you need to be fresh are dried in the UK. If you like it, fill your boots. If you don't, try chickens feet, cockroach, grasshopper, and any other dish fried to impress tourists.
Headtime - We ate deep fried crickets & other bugs in a market in Bangkok & it wasn't just the tourists that were eating them. The locals took them home in a plastic bag that looked like something you'd get a goldfish in at a fair. Can I also say that they smelt much much better than they tasted!
I think curry in a chinese take away is really to get the punters in. The old she want's chinese you want curry dilemma, simple solution get chinese curry. Nothing like real indina food however even the English version.