We moved into our delightful little social housing bungalow in a little village on a street with 48 properties (24 bungalows along the one side and 24 3-bed semis on the opposite side.) It was built as a private estate about 45 years ago and the company went under when it was about 80% of the way through and the local authority took over. So yeah, we've got basically what should have been private houses as social housing... Around half have bought on right to buy over the years.
Then there's three large detached bungalows built up on a bit of land at the top of the road - 3 and 4 bed ones. Probably cost 3X more than ours as they're 3X bigger, and they have bigger gardens etc. We moved into a bungalow at the end of the road, and our garden is separated from the garden of one of the big £500,000 bungalows.
A few days after moving in, we got a lady (from one of the half million £ bungalows,) come over with a smile and a soft voice, coming to us and asking if it would be OK if she could come and paint the other side of her fence that faced into our side garden... (about 30 yards from our bungalow.) We said 'yes absolutely.'
We spoke quite a few times when she came out of the side door to walk down the road, (over a few months,) and she seemed quite pleasant. After 3-4 months, she asked us if we wanted to buy part of her land ... 1/4 of an acre ... she said 'that will make your garden nice and big!'
I said 'I would love to but this is actually owned by the council, so we wouldn't be allowed to buy the land.'
She looked absolutely crestfallen and then shocked, and said 'I can't believe it. You rent it. You're a council person?
I thought you'd bought it!' 'No, no,' I said, 'we rent it. It's long term social housing and we will be in a very long time because we absolutely love it..'
She frowned and said ... 'But you don't SEEM like you are a council person.... I mean you don't look or act like them.'
I was gobsmacked.
She had been there a year apparently, and she literally looked devastated that she was living next to 'council renters...' All of a sudden she seemed to walk out of the front door and not the side to get out of the property, to avoid us, and didn't make eye contact with us anymore. I was actually so upset and hurt.
She realised she had bought a half a million pound bungalow at the end of 48 'social housing' homes.
(Obviously around half were sold off on right to buy, but she didn't realise it at the time... even so they were previously social housing - so probably still not good enough for her ladyship!😆) She thought they were just all private! Oh dear what a shame living next to council scuzz like me! 
She did sell up about a year later and move - because I think she realised how many people are 'renters.'
Also she made a tit of herself!!! Funnily enough, all the 'renters' in the road keep lovely homes and lovely gardens and are all really respectful to the people that buy and yes, even the people with half a million pound bungalows!!!
But yeah 'you don't look or act like council house renters' is right up there with one of the most ridiculous things anyone has ever said to me!