Bob, for goodness’ sake, you are a marvelous person with so many gifts that you share freely with others. If that’s your definition of curmudgeon, yeah, I bet there are a LOT of them in Heaven.
When my family comes entreatingly to me with a plea of “Daaad”, my typical response is to loudly say “NO!”
And then say, “But just out of idle curiosity, what was it you wanted?”