Author Alice Dreger sent 21 angry tweets during her son 's sex ed lesson . Could not believe Michigan school was teaching abstinence only classes . 'The whole lesson here is `` sex is part of a terrible lifestyle '' , ' she fumed . Principal Coby Fletcher denied the school has an 'abstinence only ' policy .
Author Alice Dreger sent 45 angry tweets during her son 's sex ed lesson . Could not believe Michigan school was teaching abstinence only classes . 'The whole lesson here is `` sex is part of a terrible lifestyle '' , ' she fumed . Principal Coby Fletcher denied the school has an 'abstinence only ' policy .