Exactly my experience. The PI hops from one grant or consulting contract to another before the work on the previous grants and contracts is complete, and you as

Exactly my experience. The PI hops from one grant or consulting contract to another before the work on the previous grants and contracts is complete, and you as the postdoc or research assholeciate find yourself called into another meeting to produce something completely unrelated to the several projects that each require your full-time attention, on a schedule determined without your input. The PI has made unrealistic promises to funding agencies and clients without consulting you. It now is your job to produce on short notice. This is partly due to the grant-driven nature of the work, but personalities also play a role. Intellectuals are driven out; mental technicians remain. My experience is even worse. I was drafted to do system and network administration and helpdesk application support--in the PI's mind these were indistinguishable from software development--as well as the research and software development for which I was hired. As I could not afford the endless dues paying, I left.