the young man shifting idly from foot to foot , sipping a pint of what tristran supposed to be mr. bromios 's best ale , was wystan pippin , who had once been tristran 's schoolfellow , although never his friend ; while the older man , sucking irritably upon a pipe , which appeared to have gone out , was none other than tristran 's former employer at monday and brown 's , jerome ambrose brown , esquire .