Think in a dog and a veterinarian, in this case Kagerou and Eirin.
Wahahaha! I'm gonna eat yoooooou! You're in the way. What's with this sudden atmosphere...? GYAAAAAA! Noooooo! Stay baaaaaaaack! Sorry... Noooooo!! Now kindly get out of the way. BOOO! How's that?!
Surprised?!