Simple fix. Once he lands at his connecting city, he becomes ill, fatigued, whatever, tells company he needs rest before going on. Option 2, lands at destination, tells company I am sick, fatigued, back problems from the coach seat and needs medical attention. Watch the horror unfold with the attempt to get medical assistance. The FAA is on our side when it comes to rest and fit to fly not the company.
Even though I am not on the 76 we have had similar problems with the company junior manning. You allow the company to force you into doing something you know is not right. Worst case, you talk to a chief pilot, worst next is you are asked to get a note. You go to doctor (your doctor, could take days to get appointment, make sure to expense the office visit to company) get a note, done deal. The schedulers use the threat of talking to chief pilot to get you to go along with the hose job.