Christmas Eve I am on call: (even though I am 9th from the top in senority (26 years in). I called in, and was told to hold. While on hold I heard the supervisor say to "Joe" - "you got the day off". "Joe" is at least 10 people below me in senority if not more. So when the supervisor came back he said "your on." I said "what the hell? You just told Joe he has off, he's below me. The supervisor said "today has nothing to do with senority, its based on area knowledge, start time is 8AM" (30 minutes lafter) Is what he is saying true? And of course the union stewart is not answering phone. Anyone got an answer? Appreciate it.