At least it wasn't spilled on him, the little mercies.

"I think I can handle that, instead." Which is absolutely code for him using the leverage he has to pull him back before he can try to get back to walking. And use his very convenient snake hiding under the cloak to grab the bottle by the side in its mouth and zip back into hiding. "I'll dispose of it later, properly. But for now let's get back to our quarters, hm?"