-robtheownerwhilehishouseisonfire;fishintroubledwater(s);makeuseofsb.'smisfortunetoserveone'sownends[advantage];plunder[loot]aburninghouse;profitbyanother'sillluck;stiruptroubletoserveone'sownends;takeadvantageofaconflagrationtoloot;takeadvantageofothers'difficultiesforone'sownbenefit;takeadvantageofsb.'smisfortunetodohimharm;takeadvantageofthesituationtoprofiteer
