Exactly. I suspect she’s reacting to the surge of adrenaline, which I’m not sure I could train out of her even if I tried. Her behaviour is consistent with the results of this study:
“When exposed to the fear sweat sample the dogs had a higher heart rate and tended to ignore the stranger, seeking comfort from their owner. With the ‘happy’ odor sample, the dogs appeared more relaxed and less cautious towards the stranger, sniffing them inquisitively.”

Study Proves That Dogs Really Can Smell Our Emotions
Study Proves That Dogs Really Can Smell Our Emotions
