Just a little drastic.

Threatening to abandon someone on a foreign planet simply because he was doing his job in a way that went against her own opinions.
She understood that he was trying to save the city and its inhabitants, but she didn't care.

Ruled by emotions, she figuratively castrated the man in front of his research team simply for trying to help.
For the barest moment she felt bad, then a strange sense of satisfaction swept through her as she allowed herself to relieve her fear in the form of anger, taking it out upon the hapless Kavanagh.