I would be afraid a crochet hook even a fine one might leave a bigger hole than I would like in the fabric as you work to get the knot pulled inside.
And Yes, I too must check the board regularly. I have looked at other message boards with quilting topics but haven't found one I like as much as I like this one. It is friendly, interesting and easiest to use of any I have looked at. Glad to be a member! :mrgreen: