No, but I could see myself asking for a spell, feat etc. that did something special, since I have not had the opportunity to read and memorize all.
There has been a few open questions like the one I just described that would have taken me a long time to answer, since they would have required that I go through all the books to give a complete answer.Has anyone answered something that you weren't capable of answering yourself? I know you've been stumped before, but only when everyone else was stumped too, as far as I've seen.
And I have also checked some surprising answers to see if it really could be true.
And I think you will find that I have been wrong on occasion.