Did you hire a plumber to fix a leak in the kitchen? I am a plumber. Are you trying to rub my face in it? Don't you think I am skilled enough to fix it?
 rub one's face in something rub something in one's faceRub one's face in something 可指重提某人丟臉的舊事，再度強調丟臉的地方，也可指強調某人現在丟臉的地方
Most companies resume bsiness on the fifth day of the Chinese Lunar New Year.