How one very cool guy changed my life forever — “Erection.” “Louder, please.” “Erection!” That was my 10th grade English teacher, Joel Kabatznick doing his “Words of the Week Club” routine. Every Friday, he’d spend about ten minutes teaching us words we didn’t know, like “idiosyncrasy” or “meretricious.” And, every so often, he’d slip in his brand of sex education…