[Edna knows the ways of the tsun so well... as can be expected, Leon's immediately snapping out:]

You have nothing to thank me for. I'm hardly helping you. I am doing this for myself, so that I do not have to deal with him being troublesome later.

[So...there!!!

... And yeah he probably would give him a good yelling-to, but all he does in response to that is huff under his breath, because he doesn't know if that's a compliment or an insult.]