How much?

I suppose we all eventually become our parents, and one area where I am definitely my mother's son is in my attitude to money. Becoming a parent has led to me imagining her old refrain "Do you think I'm made of money?"on many occasions, not least when you are having to cough up an exorbitant sum for children's food.
A case in point was a trip on Saturday to the Natural History Museum. As is often the case, we actually had a packed lunch prepared for J so didn't have to buy him anything. However we were going to get lunch for ourselves. Nothing fancy, just a sandwich, or a bagel... HOW MUCH????!!!
This time, I don't think I was just showing my age, not at £7.95 for a bleedin' oversized Cheerio with a bit of chicken and salad. The upshot was that we just bought a hot beverage each and sat there smuggling bites of his ham sandwich under the watchful eye of the food police. Actually, my wife was quite brazen about eating hers. She had a sort of mad look in her eye that almost dared the waiter to confront her - unleash hell!
What was really galling was that the cafe in question was run by the same company that has the franchise for the Museum of Childhood in Bethnal Green, where prices are very reasonable, the food is excellent, and consequently many parents spend their hard-earned there.
So in future, it will be smuggled sandwiches for all of us, and we'll save the money for a sticky bun from Greggs on the way home. You're never far away from one.