Re: Grandparents looking after grandchildren.
They think that because you've not put any limitations on them. I think it's great that they think of you and that you would want to spend time with the grandchildren. However, it is up to you to determine the parameters. There is no need to feel guilty. They chose to have these children and it's their responsibility to care for them....not yours. You already did that with your children. It is not your job to give them free baby sitting. Am not sure where you got that idea. Just be honest with them. Tell them how long a notice you need, how many hours at a time you can baby sit, hours that are acceptable (Not before 9 AM and not after 9 PM of whatever suits you), etc.