"Araragi-san is right. That's terrible, Iwasaki-kun, and completely improper. It's demeaning! Isn't that why you have Kudou-san for anyway?" Iwata said, putting his hands on his hips. "But, well... yes and no. You can experiment with this sort of thing... more often than not, results will be logical. And tasty. Don't forget, potion making is just cooking in another way... Or bartending, ah-- but I'm straying. Where was I? Oh yes, you may also find recipes from youkai cook books, or perhaps punching the right people on the subway."

A pause. "And, of course, there's always asking... in a civile, polite way," he cleared his throat, holding up a finger, "Which IS what I encourage as your sensei. Let's try to be good citizens here, and only resort to violent beatings after the diplomatic process breaks down."