I have seen that as well. It was also on the Southwest Chief and it happened not too long after we had left Los Angeles. The individual was "an issue" in the Dining Car and was escorted to the adjoining SSL. At our next station stop, the Conductor and Trainman tried to get him out of the car. He became combative and a rather burly fellow guest assisted them in getting him out of the car and off the train. Police was waiting for him on the platform. (I have wondered why the police did not board the train to help the crew remove this man.)The only place it is acceptable for a passenger to be drunk is in their own sleeping accommodations. If they bother other passengers or are drunk and obnoxious in public parts of the train, they will be removed. I've seen it happen.