To ask how you would approach this?

[MiaMarshmallows]

Left grandkids with friend as had an early morning dentist appointment.
Got a call from friend just now saying the children had ignored her throughout the morning, spoke rudely to her and did not show any manners.
However, I know friend is going through a bit of a tough time herself and may be extra sensitive. How would you approach this? The kids are very well behaved at school. Not so much at home with parents but think that is a general thing.

Grand kids are old enough to know better. I think you’re making excuses.

It’s not ok at a visitor’s house to be so self absorbed you don’t hear instructions etc. They need to know they should be on next behaviour she was doing you a favour.