Why are the ice cream machines at McDonald's "always" broken?

We've all been there. It's a hot day and all we want is a cone of soft serve ice cream. But the person behind the cash register solemnly informs us the ice cream machine is out of order. What's going on? We learn about the ice cream machines used at McDonald's franchises and how service agreements, bad technical manuals and copyright law mess everything up.See omnystudio.com/listener for privacy information.