Before Jimmy Johnson offered pregame commentary on Fox NFL Sunday, he was quite a successful football coach at both the professional and collegiate level. As coach of the Dallas Cowboys, he led his team to two consecutive Super Bowl victories. A few years ago, I read an interesting tidbit about Coach Johnson: he collected and enjoyed exotic fish. He enjoyed them so much that he had seven saltwater aquariums in his Florida home. Notice that I said salt water. By the way, I also found out that the plural of aquarium is either aquaria or aquariums.