After reading this post I was put upon a similar situation. Holding behind another aircraft at an uncontrolled airfield for some time, rather than be spread across the PPRUNE as rude, I thought to inform the aircraft ahead of my intentions. Multiple calls were made from me sitting behind, all ignored. Aircraft ahead in question had a fully serviceable comm stack as I responded to his earlier radio check.
I backtracked with and departed before him. All I can say is I tried!