Mayor Bloomberg, Chancellor Walcott, and entourage set a bad example on the first day of school by breaking the cardinal rule for appropriate footwear on the gymnasium floor. (Photo: NYC Mayor’s Office/Flickr)

Mayor Bloomberg, Chancellor Walcott, and entourage set a bad example on the first day of school by breaking the cardinal rule for appropriate footwear on the gymnasium floor. (Photo: NYC Mayor’s Office/Flickr)