Bilbo was now beginning to feel really uncomfortable. Whenever Smaug’s roving eye, seeking for him in the shadows, flashed across him, he trembled, and an unaccountable desire seized hold of him to rush out and reveal himself and tell all the truth to Smaug. In fact he was in grievous danger of coming under the dragon-spell.
'Your bow, Legolas! Bend it! Get ready! It is Saruman. Do not let him speak, or put a spell upon us! Shoot first!'
(Gimli in "The Lord of the Rings: The Two Towers")
“Dear friend, don’t listen
to anything that the monster says.
Kill him before you become confused.”
(Enkidu in Stephen Mitchell's translation of The Epic of Gilgamesh)