From the book "Lord Of the Slings":
(.......) Gandalf shouts: "Throw it into the flames of Mordor!". "No! I won't do it!", Gard replies. Gandalf is now so angry that you can see the vein in his forehead: "Do not let the power of the sling take over your control! Do it, now!". Gard looks down, and says: Ok, ok, you're just like mom! I'll do it...". "Well, hurry up!" Gandalf shouts back to him.
Gard runs up the volcano. Suddenly, halfways up, he turns around with a stone in the sling. With a fast movement he swings the sling and the stone is heading against Gandalf with extreme speed. But Gandalf is too quick, and stops the stone with his staff. "You are too slow for me! Now, throw the sling into the lava!". "No! Never!" Gard shouts to him.
Then, from nowhere Gard gets two gland shaped stones, and with a trained action he throws the first one with all his power against Gandalf, but again the stone is stopped with the staff. But with a rapid fire techinique (which Gard learned from Tint) the other stone is already in the air. This time Gandalf is not quick enough, as the stone was already in the air when he stopped the first one with his staff. The stone hits him in the middle of his forehead, and Gandalf falls to the ground. Gard puts the sling in his pocket and runs away, with a satisfied smile around his lips. (.......)
Ah, I should start as an author!
Gard