My SIL has just celebrated her 40th & didn't want a party, went away for the weekend instead (which is exactly what I did, don't blame her). However she's now invited family & friends to her local at the weekend to celebrate belatedly. No children are allowed. As we rely on family to babysit & they're all going to be at this 'do' this effectively means that only one of us is invited, the other will have to stay at home with our son. Should I go alone, just to put in an appearance, or stay at home with my family?