Trickyboots If only they ignored me! A common difficult thing with them I have started stamping down on is them asking me the same question/getting me to repeat things. I will repeat something twice and then on the third request for information I have just given them respond with 'I have already told you twice and I won't say it a third time'. They respond by looking at me as though I have two heads and huffing and stropping.
WRT the shouting at first I firmly, without shouting just responded that I wasn't going to do X,Y and Z. She then shouted louder and became more hysterical. I responded again that I am not going to do X,Y and Z. She then got really nasty, shouty and snappy and personal so I ignore her. Then I think she thinks she won the argument…
On one memorable occasion I asked her to stop speaking to me 'like that' which resulted in a family argument so enormous, our wedding was nearly called off and my DH still blames me for 'being confrontational'.
In case it helps I have recently started to split their difficult behaviour into three pillars from bad to worse
Appalling faffing, dithering and obsessing - This on its own may not be too bad, and I am aware people have good relationships with ILs who do this, but makes seeing them very practically difficult and stressful. I think it is also a deliberately rude behaviour, and form of control.
Vile comments and behaviour - They are disabalist, racist, islamophobic, misogynistic bullies who come out with utterly disgusting stuff. This is mainly aimed at everyone else in the world but occasionally at me. There was a grotesque Harvey Weinstein quip that was made on this last visit to me, which DH had the decency to nearly fall off his chair over.
They also brag about their drunk driving and nastiness to shop assistants etc.
Shouting and snapping - Their tone with me is on occasion completely unacceptable. A normal conversation can very quickly turn into a verbal, shouty attack which DH has never once confronted.