My granddaughter's relationship with her other grandparents

I wouldn't read too much into it. This is how little children act, and I mean 'act'.

Goodness me! I agree, Aka...

Which is why I suggested being aware and listening but without being overly anxious.

AKA and Ana I am with FlicketyB and Mishap on this

I think the child's distressed body language that has been observed is the worrying bit in this situation.

Children say all sorts of things and make up stories but I do not think any 4yr old would be able to convincingly fake that bit of it.

This is purely theoretical but Relatives etc must be very careful about how they talk to the child.
If in the worst possible scenario some serious abuse is very going on, the wrong type of questioning could mean any story the child wants to tell becomes inadmissible in court if any defence barristers want to suggest a child has been "coached" in its "evidence."

I also felt uneasy reading this. I would have just said "oh, why," if she had something troubling her she might have said. I definitely would keep an eye on the situation. I don't think it is a good idea to just dismiss out of hand something a child says. Children are often abused by their relatives.

Sometimes they are unable to say anything other than they do not like a certain person.
But of course this could simply mean that the grandparents got cross about something last time she was there. However, I agree that the body language was more significant than the actual words and if it is a one-off incident it may be no more than that.

My little grandson (3) told his mummy and daddy that Grandma (me) was horrible and bossy to him after he had been sitting on my lap for an hour at a birthday party and his mum and dad were in the garden having a jolly old time. I had just said to him to stay with me because they would be back soon. I cuddled him, rocked him, sang to him and kissed the top of his head.

I felt like the wicked witch of the west when his mum told me what he had said. I thought 'little brat' but he was just saying what he felt at the time. He is still loving and cuddly.

I wouldn't put too much thought to it. Maybe she didn't have a very good time the last time she saw them. Children are so funny.

My GD2 said she "didn't like Nana" when her Mum and Dad came to pick her up from my house, on their way to her other grandmother's house. It was pretty obvious it was because she was very happy sitting on my couch playing with my iPad and didn't want to go anywhere, not even to visit her Nana. Another day she insisted she was "going in Nana's car, not mummy's."

On the other hand years ago a relative was sexually abused when she was three by her grandfather. The abuse has caused many problems in her life as sexual abuse more often than not does. I wouldn't want to miss the signs.

My little GS who had told his mummy and daddy that I was bossy and horrible loves me again. Especially since I allowed him to bring handfuls of snails into the lounge, fish for frogs and tadpoles in my pond and gave him a bag of chocolate animal biscuits. Fickle child.

In my kitchen is a big picture of me with a round mouth and a bubble coming out of it saying 'No', drawn by DGD. It means she knows that if I say no I mean it, but she still loves me!

DGS is fascinated by creepy crawlies. The AA man who came to fix the non-starting car and the CH maintenance man managed keep their cool as 3 year old DGS came up to them beaming, hand held out and said proudly 'I minding a slug'.

you should mention it in a casual just to let you know way to your son, she is their daughter it is there's to deal with if you sound like your making any implications or make a big deal out of it to your son your DIL will possibly take offence to this as it will look like you are implying something against her parents. If you do as suggested you will know that you have at least made them aware of it but not interfered or caused upset.