I received a panicked email (and following voice message) on a Saturday morning from a client pertaining to their website that had just soft-launched.
Client: I just tested the shopping cart on two computers! Everyone in the whole wide world has a shared shopping cart! We need to fix this now!
Me: Okay, can you describe what’s happening?
Client: I had my son check the site on his computer, and he saw what I’d put in the cart! The site is sharing information! THIS IS A HUGE PROBLEM!
Me: Are you sure you aren’t both logged in to the same account on different computers?
Client: YES I’M SURE oh. Wait. Yeah, that’s it. Sorry to bug you on the weekend!