Sister horrible to our mum

[Sadsister224]

I've name changed for this because it's potentially outing.
I'm feeling really low tonight because over the Christmas period I've witnessed my sister just be repeatedly short and snappy with my mum. Or give her the cold shoulder or silent treatment. They are very different personalities and have clashed in the past.
My sister has absolutely no patience when it comes to my mum. My mum tries so hard with her and her kids and she is such a wonderful grandma but my sister doesn't appreciate her at all. It's making me feel so sad to witness. I just feel like she's treating my mum so badly. My mum is also getting older and that makes it feel even worse.
I feel like I should speak to my sister about it but she is a very tough person, I'll need to really work up to it because it will be horrible. There's no one else around to speak up for my mum.

Sounds like a nasty piece of work, definitely speak up and put her straight.

Just remember there maybe two sides to the story. Often one child is the golden child and another is not and treated horribly.

If someone is getting bullied in your presence, stand up and stick up for them.

There's no need for that, what do you mean by that, why did you say that, why are you being rude/nasty, what did you just say to her...

All of the above make a bully stop and take note that someone is listening.

If you do nothing, the boundaries are tested, and next time it's worse.

I wouldn't sit there and listen to my sister being rude and nasty to our mum. I'd tell her if she can't keep a civil tongue in her head she should fuck off home! Speak up for your mum OP!