I went ahead and set up the heater where he directed, trying to angle it to cover more of the room, including Lupin himself. And then, mostly to avoid the urge to laugh- which I suspected would go awry- I decided to change the subject, handing him a box large enough for a carefully folded suit jacket.
"Finally got that done for you. Merry a-few-weeks-after-Christmas."
[Action]
"Finally got that done for you. Merry a-few-weeks-after-Christmas."