so when food is too salty we might say "打死卖盐的" basically meaning "did you beat the salt merchant to death" but one time in an attempt to be a little polite and a little funny to the chef (my mother) i said "……是不是又跟卖盐的有矛盾了" meaning "are you... having a dispute with the salt merchant again" and now it's a whole thing in my family

anyway point being there has been another altercation with the salt merchant