Jana, I hear you! I get this problem all the time. A customer will ask "Can you send this by next Friday?" and I have to clarify "Do you mean can I SHIP it by next Friday, or will you RECEIVE it by next Friday?"
I also get the "Do you have this size in stock?" question a lot....even though I try to make it pretty clear that everything is made-to-order. Part of the issue is that Etsy has that drop-down of how many pieces are "in stock"....sometimes I have to clarify that it means I have the MATERIALS to make it, not that it's already made. Nothing is already made. I would need a warehouse!