Friday afternoon I started a test run against an API to sort some file issues out. Saving the result in a List<string> while running to dump it out to a text file when done. Due to bad formatting of the filename I got an unhandled exception. Quick test code doesn't always include try-catch statements where they should as you know. Since the the information was in the list I went ahead and dumped it out to a new text file via the immediate window.
You can more or less run any code via the immediate window as long as everything you need are in the current context. I wrote a short example on how to do this if you ever run into the same issue. Immediate-window-demo on Github.