From sciam https://twitter.com/sciam on Twitter: Pulling up to a parking spot and finding a shopping cart there can be pretty frustrating. Why don't people return them? https://blogs.scientificamerican.com/anthropology-in-practice/why-dont-people-return-their-shopping-carts/?utm_source=twitter&utm_medium=social&utm_campaign=sa-editorial-social&utm_content&utm_term=mind_blog_text_resurface&sf177270005=1 https://twitter.com/sciam/status/944598643797086209/photo/1 https://chirp.cooleysekula.net/attachment/46191