Qubit's preoccupied enough with the head itself, and with considering his next move, that the lid coming down catches him totally off guard. "GAH!" He fails to get his fingers out of the way in time, and recoiling from that pain makes him lose his balance and fall on his ass, like the cool guy he is.

His temper flares. What the hell is her problem?! Sure, he knows the space flu can cause hallucinations, but at no point did he claim the box was empty- He quickly gets to his feet, shaking out his hands. "Yeah! I have eyes, thank you!" Impulsively, he makes a grab for the box, intending to wrench it out of her hands - that way he can open it up without losing any fingers.