I had a similar thing, with F# as well actually. We had some code that used a square root, and in some very rare circumstances, we could get a negative number,

I had a similar thing, with F# as well actually. We had some code that used a square root, and in some very rare circumstances, we could get a negative number, which would throw an exception. I don't think i would have even considered that possibility if FsCheck hadn't generated it.