Jonathan reassures Coral that coral isn't a type of plant, but an animal. Except it's both. Sea coral is an animal, but coral is also a common name for several kinds of flowering plants across the world. Although it is possible Jonathan didn't know, or lied to keep Coral the person from being even more terrified.
As Sergeant Heather Davey enters the gym, she is holding her pistol with her finger on the trigger. No experienced firearms officer would do that, the finger should rest on the trigger guard to avoid an accidental discharge.