I have been at NJA for 7 years. I definately agree that there are many captains who are afraid to do the right thing. I get pissed when an FO on probation complains to me because his Cpt won't call in fatigued even though the FO told him that he was tired. I always tell the FO that HE can call in fatigued as well. He doesn't have to rely on the Capt. Of course, I realize that being on probation, it's probably tougher to undermine the Captain. Those that have been here a while know that an FO won't get fired for calling in fatigued. But you must understand their trepidation
That being said, if you are an FO who is OFF probation, then don't cry to me, "my Captain won't call in fatigued for us." As an FO, "YOU CAN CALL IN FATIGUED" for yourself.
If you are a Capt, don't be a wimp. Use your authority to look out for your crew, whether it's about crewfood, fatigue, illness or whatever.
I never hesitate to call in fatigued. I am an IOE-IP and know that newbies will get tired much quicker than normal crews because they have the added pressures of learning everything and performing to par. I always tell them that if they are fatigued, I will call in fatigued for the both of us.
Take control of your situation and do the right thing.