Which is exactly what I mean by those speaking for the dead----the ones who supposedly knew her. The ones who'd said she hadn't known one end of a gun to the other. Mainly her surviving family who " spoke for her " by coming out with all kinds of nonsense that wasn't true.
Lookout, I can only comment on what I see, and listen to what others say. I see Sheila as a bit of a 'society' girl who was at her happiest in a city rather than the country. She put great store in looking pretty. Well dressed, hair, nails and make up done. She liked parties and clubbing. There's been nothing at all said of her which indicates her being into any country pursuits. No school friends have come forward to say Sheila enjoyed shoots when she stayed with them. Indeed, it's possible she didn't make friends with girls from farming families because she didn't share the same interests.
(Regarding your claim that as a farmer's daughter she'd have automatically known about guns MAY be true for some, but my farmer friends' daughter is very similar to Sheila, adored her father, went to boarding school, temped as a secretary, had a flat in London, into fashion and everything connected to it, married a man with no connections with farming, possibly because the local farming males weren't interested in her as a wife because she didn't have the same interests. I'm fairly certain she's never as much as touched a gun)
I have no reason to think that what's been said of Sheila by those who knew her, isn't true because no one yet has said anything which could be considered to be contradictory.