Last fall - The same situation that we have this weekend with the dunes. Except that his dad decided to stay an extra day and was staying the night at our house. Spending some Q time with us. The night before MIL corners my H at the restrooms for 40 minutes and cries, and guilts etc. about how could he let his dad stay at our house and she had to stay in a motel while she was there. My H didn't sleep at all that night. The next morning she calls and tells us she won't be coming to the camp that day. We can come get her food and take it. We didn't. 20 minutes after we show up, here she comes. When H didn't cave to her, she found a new tactic to try. It's just sick.