This happens to me sometimes -- even on an all day installation. I was changing out a gas furnace and swinging 'S' cleats around, and nearly caught the guy in the face. I finally said to him :' How about if i come and get you when im done with the installation ?' . He got the message and took his dog for a very long walk.
What are some tactful ways to tell a HO to 'please take a hike' ??? Or..perhaps you believe since they are paying the bill that its ok (??)