I don't mind helping other guys out most of the time, but last Friday I was sent a message via diad to help another driver. I knew there was other drivers with less seniority almost done or already done. I replied on the diad, " say you're forcing me and if not I'm coming in the building. When I got back to the center at 5:48pm the supervisor that sent the message ask if I helped him, I replied no and went home. The supervisor called my Union Stewart and told him they would be walking me off the property Tuesday. BTW one of the less senior drivers is this supervisor nephew and he had been off since 4:45pm without a 8 hour request. Just looking for suggestions on how I should handle this.