The sentence represents the type of fallacy called Slippery slope, which <em>starts with an insignificant statement or event</em> ("Our school needs a dress code now") that leads to <em>another more significant but not likely to happen </em>, or can even suggest a ridiculous outcome ("students willbe showing up in bathing suits and sandals."). The <em>connection between the ideas</em> is "and next..." ("Before you know it")