Re: to help someone with his taxes
Perhaps a little deductive reasoning might be in order.
First, how do we know that they didn't receive a tax refund, so there were no additional taxes to be paid in the first place.
Second, if there taxes to be paid, it seems to be that that is a bigger cross to bear than mowing their lawn. Yet, he says *even* mowed their lawn, like that was the biggest deal.
Finally, if you actually paid somebody else's taxes, it seems to me that you would say exactly that, because that is a bigger deal than helping them file their taxes. So to me, helping them with their taxes suggests (very strongly I would argue) means helping them file their tax returns.
A man who begins with certainties will end in doubts. A man who begins with doubts will end in certainties.