Because I sometimes park on double yellow lines?

[Catsize]

It happened again yesterday. I was parked on double yellow lines.
I had my hazard lights on, but it wasn't in an irresponsible double yellow line place.
I hadn't yet got out of the car.
A lady and her partner walked hand in hand towards my car, and I thought 'here we go', they were obviously talking about where I had parked and sneering at me.
I thought they clocked the blue badge and timer in the window though.
Whether they did or not, a barrage of abuse and lots of aggressive gesturing followed, swearing etc.
3yr old and 1yr old in the car. 3yr old 'Mummy, why is that lady shouting at you?
This is not the first time this sort of thing has happened.
Perhaps people don't realise that if you have a blue badge, you CAN park on a double yellow line, but have to park sensibly, eg not at the edge of a junction, and not where there are little parallel lines perpendicular to the double yellows.
However, I do think the 3hrs permitted on double yellows is probably excessive.
This is really to raise awareness, less any over zealous parking enforcers Mumsnetters feel the need to shout at people in public.
I probably wasn't bu, but it ruined a lovely day.

I live in a town with a large elderly population, many of whom have blue badges. DH and I checked this law a few weeks ago as driving down the high street is so dangerous - cars abandoned on double yellow lines around a blind junction, by the fire station etc. I thought double yellow lines were there for safety reasons? Saying that however, it is the law and I would never dream of having a go at anyone for parking on them, no matter how unsafe. I do mutter under my breath though as I have to swerve into incoming traffic to avoid a car parked on double yellows on a blind junction.....again.

I think it's fine if you do it in safe places.

We had a Mum at the school who would drop her daughter off at the school. She had a blue badge and would pull in where the lollipop man would stand every day. There were nearer places but no she insisted that she could park there. After a near miss with a child one day I rang the police. They came the next day and had a chat with her. It turned out it wasn't even the mums badge but her disabled mother. The police read her the riot act and took the badge off her. Funnily enough from that day on she parked properly.

Prometheus If someone is parked unsafely, BB or not, you should alert them to traffic officers or the police. You are only meant to park on double yellows if it's safe. There is no excuse for putting other road users at risk.

I'm not expecting anyone to agree with me on this but I don't think it is ok to shout at or verbally abuse anyone when they have small children with them. From a child's point of view that can be very scary and unsettling. I've lost count of the number of times I've bitten my lip because I had my own kids with me, or let something slide because there were little ears around. So I think the couple WBU.
The fact that you had hazards on would suggest a possible break down, so at the very least they should have checked if you were ok before launching the tirade.
I do think the rule is silly: but how can you make a rule that says you are permitted to park as safely as you possibly can on double yellows when it is absolutely necessary for as little time as possible? It's the nature of the law that it is a very blunt instrument.
But I suspect that the kind of people who don't have the sense to tone it down when children are listening are the very ones who necessitate clear unambiguous rules instead of common sense.

I've just read the leaflet and it specifies things like dropped kerbs, loading/unloading restrictions, and 10m from junctions (that's quite a fair distance).

The 10m rule is very often the one most flouted.

The 10m rule is flouted by many drivers, not just blue badge holders. Round here, people park right near the junction of a very busy road.

I'm not surprised.

Most people tend to forget distances and if there are no markings, they just ignore them. From crossings, bus stops, junctions, etc.

The council should mark those distances, so there would be no confusion.

There's some yellow lines near me that are stupid. It's not at all dangerous to park there. I'm not sure why they are there maybe because of the type of building they're outside. They are in between a loading bay and parking

I couldn't report out junction Parker. I assume they wouldn't do it if they didn't have to in order to not be house-bound. Presumably if they could get a personal space they would have (other people do).
It's all on-street parking here - a mix of residential permits and tickets. Around two car lengths from each side street the parking bays stop and there are double yellows. This car just goes on the end of the parked cars (all bays usually full).
I guess really I should just always turn left out of the street and find another way round to the way I wanted to be heading.

Thank you for these interesting replies. For the avoidance of doubt, it wasn't anywhere obviously dangerous, but a long straight wide road in a town centre. As someone else said, it was probably used for parking years ago but the rules have since changed.
I am also fairly sure that the couple did see the badge because they sort of peered at it.
However, I take on board what has been said about hazard lights - I only put them on because I thought it would make me more obvious to other drivers and I don't usually use double yellow lines.