Ah, well, I know all about that, having become enraged at a stupid idiot in Edinburgh. Every January the National Gallery takes out the delicate watercolour sketches made by Turner, bequeathed to them with the proviso they are shown only in dim light, once a year. There is always a big turnout, and the staff say to everyone who enters: No Flash!
I couldn't believe it when the woman in front of me took her phone out, put it very close to the painting, without taking the flash off. Bam! I said. "What the Hell are you doing? You got told not to use flash!". She just gave me a silent V with her fingers. So, I told the staff, who were not at all pleased. They confronted her, then asked her to leave. The look she gave me was pure evil. LOL. OK, I grassed, I'm a grasser. But she deserved it.
Back to Brian's fotie. What's the cow got to do with it?