So my neighbour and good friend (all our dc's are in the same classes) is going to a wedding this weekend. Her sisters are over to look after her children. I work weekends so any weekend I have at home is precious family time. My friend asked me if I could look after her dc's on Sunday to take over from her sisters so they could get to the airport incase they weren't back from the wedding. She didn't even say definitely, this morning said she may not even need me. I mentioned this to DH and he said that we have to loose our whole day (we were going to go out as a family) just INCASE we are needed to mind her dc for an hour, and can't they make sure they are back from the wedding. I do feel the same as we will have to hang around the house while they have no sense of urgency to get back 'just incase' I'm needed, but this may not even happen. What can I say to her?