I totally agree with you to move your vacation days so you can sit in your chair and watch the progress!!! I panicked when my pond guys asked if they could start on a Friday, when I was going to be gone Thurs-Sun that weekend to go back to IL to get my koi and goldfish, rocks and plants. I didn’t want to miss any of the building, even seeing the huge forklifts they used to bring the rock into the yard was exciting to me! (I added up over 20 tons of rock for the pond, plus patio blocks/stones for the patio, so the yard gained 25-30 tons of weight this summer!) They agreed to wait until the following week, and filled in with a small job in the meantime. Of course, I retired this year, so I had the luxury of being here to watch. I found it extremely hard to do anything else while they were here. Our yard was all dirt by time the pond and then stone patio were completed, but it was oh so worth it!!! Sowed grass Labor Day weekend and a month of watering later it was solid green again.