Reading the MIL thread with interest, I've decided to do a follow up thread on parents.
I will kick off with this example:-
Me - would you be willing to look after DS for a couple of hours one Saturday afternoon so we can go and see "Guys and Dolls?". DH thought it would be a nice birthday present for me.
Her response - "I'm busy most Saturday afternoons".
Her unspoken message is, "I am not interested. I've looked after you as a child and don't want to do this ever again regardless of the fact that DS (who is 6) is the only grandchild we have. Am far too busy with my own life which comprises of looking after your childfree brother in his mid 30s and shopping".