I agree it was careless but have you REALLY never left heels somewhere you shouldn't have? ;-)
She's OK enough with me in heels to accompany me in them so long as they are masculine-ish styles. Funnily enough she's fine with a pair of boots I think are too pointy. They're block heeled cowboy boots and otherwise very subtle and very easy to walk in. Her main question was what heels I'd be happy to be seen in by visitors.
My 'pushing' of my heels is because I resent being dictated to by convention that says women can wear anything they like but men are perverts/gay/weird if they wear anything outside the strict 'norm' as determined by so-called society. I don't want to offend family or close friends but couldn't care less what other people think - I used to be afraid of being laughed at, but why should I worry about that? What about all these teenagers with colossal holes in their ear lobes? I think they're gross, but would I laugh openly when I see them? I hope not - it's their freedom of expression, just like heels for me. I'm just slowly trying to introduce the thought of me in heels to people a bit closer. My reason, apart from liking them, is that they are a miracle cure for backache, which I get after just a couple of minutes of standing in flat shoes.