The painting of nails, or in his case claws, he could have potentially put up with. It is something commonly done among his people.

"We shall see what is left after your injection." Though he doesn't see any harm in indulging her.

He takes her arm and places the injector against the inside of her forearm, keeping her distracted by talking as he proceeds with the vaccination. "They are about the length of my hand, winged, and with a long, segmented tail. They ambush their prey and bites down on their throat while wrapping its trail around the person's throat. Once this has happened, the death of the victim is assured. When an Iratus has attached itself, it cannot be removed."