Being a freelancer for many, many years I have see a few crazy requirements (and crazy clients) in my time. One of the craziest and funniest ones to me was a client (who you have probably seen on TV many times) that wanted a task manager website with a kanban board and push notifications, running on a high-end wall mounted touch screen specifically tailored for feeding the pets only locally within his home because "the kids" were not feeding them on a regular basis. I didn't feel bad at all taking his money on that project and still laugh about it every time it crosses my mind. :-)