So even if they didn't notice that she was missing meals or skipping meals, they could see the stress that this was bringing upon the family, just having to worry about food.
And there were neighborhood locals and regulars, many of whom are so used to swinging in for a bagel on the way to work that they didn't even notice that the sign and awning were gone.
As long as we didn't let anyone handle the watch, so they wouldn't be able to notice how lightweight the fake was, it would pass for the genuine article.