[Franz watches in horror as he sees this stranger just clock a stranger for a blender.]

Hey - you can't just - whoa whoa whoa -

[Without thinking of it, he puts himself between Miyu and the other person before another blow can land. Fortunately, it seems the blender guy is content to leave with the appliance.]

I'm not sure what about that blender inspired a random act of violence, but have you tried just asking if they have another in stock?