[Hank watches him, then raises his eyebrows at Minato.]

I don't know what that meant but I think you should let him keep the knife, just walk around with it and watch the looks on people's faces.

[Oh, wait. There's a teensy weensy, itsy bitsy sliver of that responsible adult thing nagging at him, so with a grimace he asks:]

Uh. He won't just, like. Go around using it on whatever, will he?