Giraffe Caught On Camera Drinking From Swimming Pool

Carly Sakai and her husband witnessed a giraffe drinking from their elevated swimming pool one morning. The pool, unchlorinated in winter, provided appetizing water for the giraffe. Despite being filmed, the giraffe remained calm and unthreatened, taking another drink before wandering off.

What did Carly express concern about while filming the giraffe?

Describe the giraffe's behavior after it had a drink from the pool.