If there is a chance that the goy will realize and it will thus cause a Chilul Hashem then one must inform the goy (therefore when possible one should…
If there is a chance that the goy will realize and it will thus cause a Chilul Hashem then one must inform the goy (therefore when possible one should…
You may save the money for yourself, provided it is legal. See here for a brief discussion on the topic: https://asktherav.com/article-475-may-i-take-advantage-of-a-deal-if-the-price-is-obviously-a-mistake/ Sources: ראה שו"ע אדה"ז הלכות מציאה ופקדון…
