Winhamn intro - D in process, WAW

[Winhamn]

I'm really struggling with how to respond to her request to have me watch the kids for the first half of Saturday then to be out of the house overnight.

My initial reaction is to say "I feel like you are taking advantage of me by doing this".

However, what's the right response to this from a DR point of view? Happily oblige and have a good time somewhere else, right??