Percie is a medical alert dog, trained to mitigate Claire's disability by sensing and intervening when a problem begins to arise, allowing her to live a more normal life.
"A large part of my disability are anxiety-derived 'episodes,' which can best be described as panic attacks," Claire tells The Dodo. "Percie can detect my cortisol levels and lets me know when an episode is about to happen based on my levels. This gives me the advantage of knowing before the episode occurs so I can take measures to lessen its severity."
Although the dance was a happy affair for Claire, her boyfriend and their friends, Percie never let her guard down — and that made all the difference.