This is not quite the idle thought it seems.

The idle thought came that he would never hear the end if Min learned of this.

As desire left Conan's mind, an idle thought entered it.

Beyond these idle thoughts, I know no more than you.

But if this were indeed his time, he wouldn't go out with idle thoughts on his mind.

With the idle thought of making coffee, Raven wandered toward the kitchen.

Then he chided himself for even thinking the idle thought.

Then, at the flap, he paused as if an idle thought had come to him.

"Sitting around listening to wheat grow gives them too much time for idle thought."

Even that idle thought couldn't bring a smile to his face.