Hey a*sshole, he said that he made a mistake. What kind of sociopath tries to claim he's "unethical" for a mistake? Stop being a creep. If he had INTENTIONALLY done something wrong, then THAT is "unethical". But you can't be "unethical" for a mistake. Unethical implies intentionally breaching ethics or doing something immoral. Simply forgetting something or having a typo is not unethical
Sorry but I'm so freaking annoyed at you misusing that word, because I hate when people do that.
With that said, I agree with "laughter every day". Could he help you out with a couple hours pay? Sure. But at the end of the day, if you work for him full time and this rarely happens, then maybe you should just stop being an ungrateful problem-seeker and instead just be glad to have a f*ucking job, huh? Otherwise maybe he will fire you and find someone who tries to harm his company less