People are more likely to hand in found wallets if they contain more money, probably because we don’t like to think of ourselves as thieves
Source:
https://www.newscientist.com/article/2206958-we-are-more-likely-to-return-a-lost-wallet-if-it-is-full-of-cash/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home