It's hitting a man when he's down to find fault with Joe over every tiny little mistake when he is almost off his head with worry over his wife's illness.
The employee forces the employer to conclude or alter the employment contract against the employer's true will by means of deception, coercion or taking advantage of the employer's difficulties;
He is never mean or little in his disputes, never takes unfair advantage, never mistakes personalities or sharp sayings for arguments or insinuates evil which he dare not say out.