Another thought, Lane,
The environment of the interdenominational school tends to breed tolerance of diversity and reduced commitments to one's own tradition. Perhaps that is part of my difficulty (especially at first) of feeling the force of the baptism threads. When you go to school with people all over the theological and ecclesiastical landscape and have teachers hailing from different traditions as well, some issues just don't seem all that important (e.g., baptism). The very nature of the interdenominational school wars against any specific belief being taken with full seriousness. All gets relativized, pluralized, and privatized in the mix. You speak in tongues? Cool. If it works for you, fine. You baptize only believers? Works for me. You want to be confessional? OK, I guess. Etc., etc., you get the point. Plus it fits the zeitgeist perfectly in a postmodern setting!