Definitely easier said than done.

Sister who uses emotional blackmail with me: "Well, we'll have to cancel our trip if you don't dog sit. It's too late to book a kennel and I don't want to ask our brother or neighbors b/c they're already busy."

I had told her two weeks before their trip that I was too stressed out to dog-sit as I originally offered to do. She could have easily found another kennel, asked our brother, or asked one of her next door neighbors. But she refused to and tried to guilt-trip me. I caved b/c she dangles her three kids in front of me, when I have strong boundaries with her, as though she won't include me in their lives if I stand up to her. In our entire lives, she's never apologized to me, never considered my feelings, and treats me the way you'd treat a housecleaning or gardening staff. That's just one example.