"Not afraid of the big bad wolf?" The Doctor asked mildly, gazing indifferently at Martha, who had been laughing over an alien version of Little Red Riding Hood.
"Well, no," She replied with a grin, not sensing the tension in the moment.
The Doctor's face contorted painfully for a split second before it reverted to it's standard impassivity. "You should be." He said in a cracked whisper before stalking off.