He shrugs. "I suppose. I doubt I'll stick around much, though; as you say, I do have a lot of work to do, and I have other things I prefer to do in my leisure time than to look at those faces however bloodied; so I'm afraid you'll only have an hour per batch, no regardless of how many rats you use."
Having flashbacks to Pettigrew, he turns slightly muzzy eyes on Rus and asks, "Do we care?"
"Er, they wouldn't make good subsitutes, no," he concedes, giving Rus an I don't even want to know what you wanted to make the substitution in look. With an amused glance the moment the wrist-twisting starts, he murmurs, "Reicio venena novum*."
* Repel new magic (venenum seems to be a more inclusive word than incantatum would be if it were a word; it includes both charms and potions). Whether a finite incantatum would be effective on an enchanted object with a repel new magic charm on it would be an interestic experiment!) Aww. :( Yep, 0-4, 0-9. 00 would be read as 50. I never played D&D, but I miiiiss my World of Darkness group. :( Also, I clearly do not have enough playing-drunk Snape icons. ;(