I wouldn’t say thank them. [ he won’t comment on experiments. He figures in some way she has to know that all of them had that occur, at some point or another. Granted, Duo more than likely just went to a sort of fight club with larger enemies to avoid by how many punches to the gut he can laugh at outside of Heero “for your own good” Yuy.

He watches as she stands, hobbles, falls to the floor. Impassive all the while, unmoving from the door frame to assist, simply whistling for Merry so she doesn’t accidentally get hurt under foot. ]

My things are already moved. Drag yourself where ever.

[ his tone changes with Merry, suddenly, something more commanding that catches the pup’s attention. ]

Merry, come. I don’t want you getting hurt by accident.

[ he’s content enough in this, it would seem, by the very official way he closes Wufei’s door behind them.

Could he have been better about it? Maybe. Is he a good person?

Definitely not. ]