Professionals accept
personal responsibility, especially for potential safety issues. If a particular item is of concern to you, on a particular day and airplane, why not just CHECK IT yourself, assure yourself that all is properly functional and more on. If some item become a regular cause of delay, document multiple specific instances and pass it up the line. When something goes amiss at the wrong time, you do not get to jump out early; your fanny rides the SOB to termination of flight just like everyone else. IMO, a damn good question!