Nobody had suggested sandwiches, a good book and a stool, so I will go outside the box in my thinking. You simply wait them out. I did this when I was getting the cob to hack out past the nope I'm done spot/ going home spot. I took a book and an hour later she moved off. I was relaxed, calm, didn't care and I knew at some point she's going to get bored long before I do because it was a good book.