control.cancel abuse by Mark Latham

[Nomen Nescio]

And when the occasional and inevitable glitch occurs -- and if you've written software, you know that once it gets to even a moderate level of complexity, it's literally impossible to test every conceivable path through the code -- I've gotten almost instantaneous responses and detailed explanations of what caused the glitch and how to work around it. And if it's serious, it'll probably end up fixed in the next release... which will come not next year, or six months from now, but probably next month, or sooner.