May 15 is now the generally accepted day to retire our felt hats for the season and take out our panamas and straw boaters. This morning a reader texted “There’s rain the forecast. Should I risk ruining my panama, or keep wearing my fedora?” Etiquetteer’s initial answer was “Just go back to bed!” But a Facebook reader quite rightly observed that one brings an umbrella to protect one’s straw hat from inclement weather.