I get texts fromSIL asking me to have 3 DGC as he has plans for DD and himself. It is always meant to be a surprise for her! Unfortunately, she doesn't like things sprung on her. I'm always discreet - and usually'available' - . However, for her 40th birthday, he asked if I could have the DGC (3, 7 and 10). I was willing to do this, but genuinely uncertain as to how she would feel about it, so I suggested that on this occasion, he should maybe ask her about it. This he did, and she wasn't keen, so he shelved the idea- though he hasn't let her forget it! I still feel bad that I intervened, as she has said that if he'd sprung it on her as a fait accompli, she 'supposes' that she would just have gone.
This week, I have done the school pick up twice ( once unscheduled ) and also minded them in their own home one evening, as SIL planned another surprise, - a meal out for their anniversary. I'm pleased to help. They are lucky, though, as many of their friends are far from family, and have no child carers.