Claim ignorance

"I don't know," you tell her. "I just came home and some guy dropped you off in that box."

Sango lets out a huff of frustration. "Dammit! That man must have cast a spell and drawn me here. Without me to protect them, my friends are probably in trouble. I need to find the Bone Eater's Well and get back to my own time!"

Sango turns and grabs a realistic looking demon-bone boomerang out of the box. Then she stuffs her accessories into a traveling pack and starts heading for the door.

You know that you've only got a few moments to try and stop her. Should you try to keep her in the house? Follow her on her quest? Use the remote? Or just let her go and take her crazy robo-slut demon-slayer act somewhere else?