"As to your question, you know the phrase 'he could do that in his sleep'?" asked Kakashi.
Sasuke nodded.
"Well, Naruto's gotten to that point," said Kakashi. "He finally stopped making shadow clones around 3am."
"You suppose the enemy nin just got tired of killing them?" asked Sasuke.
"Something like that," admitted Kakashi.
"So you didn't find the enemy ninja yesterday?" asked Sasuke.
"Oh, I did," said Kakashi. "He was having such fun killing Naruto's shadow clones that I almost felt guilty about interrupting. He brought Sakura's chopped-off head back to his hideout and was bragging to someone about how he'd finally gotten the real one."
Sasuke raised an eyebrow and looked back at where the hammer was still chasing Sakura around a coffeetable. "Do tell."
"At which point Sakura's head began singing 'Deadman's Party' - and doing a pretty good job of the song until Zabuza started having a nervous breakdown," said Kakashi.
Sasuke put down his empty cup. "Really?"
"I've never seen an S-Class Missing Nin go into a literally frothing murderous rage and then just collapse and start crying before," admitted Kakashi. "It was quite disturbing."