"I don't think you want any." As for needing... well. Hibari had just found himself left completely helpless by Loki's powers. Perhaps having warning would be enough to allow him to evade them next time, or perhaps he'd find himself equally helpless in the face of a second attack.

Hakkai didn't see the need to rub that in his face aloud. It was equally obvious to both of them.

"... but backup never hurts," he concluded. "Although, of course, it's up to you."