Yanku perked at the word 'oni'. He had to reevaluate his opinion of L again, and turned his head to the side, then the other. Studying for a moment, before he stood up, quickly, and turned to go. He made sure the cookie pieces were all tucked away before he did so, however.

"...who is the person behind you...?"

He could speak clearly, when he wished too. Yanku gave L another quizzical look before leaning down and running off, low to the ground. He was going to do just that, for a while. Hide.