> , halacha is very clear that not returning a goy’s aveidah when failure to do so will result in a chilul Hashem is assur
Maaseh Rav, when he found a purse, he called the owner/neighbor and asked him to stop by the shul, specifically to enhance kiddush Hashem. when you consider a desire not to return, you may be looking at discussions related to Avdei Avodah Zara. This is not a given for an average American.