Shabbat 60: The Story of the Nailed Sandal

Parallel structuring, on what a man cannot wear out on Shabbat. The hobnailed sandal and the reason it was prohibited get the focus of this daf. This decree follows tragic events, and finds a culprit in this shoe, with 3 versions of the narrative that led to the decree. The lessons go beyond the danger of the shoe, however. For starters, why would you ever wear something to injure people on Shabbat?! Yet the prominence seems clear, given the attention of this daf. Also, the specificity of Chazal's decrees. Plus: R. Hiya's concern for his reputation as a posek.