This is the shocking moment a pet monitor lizard was spotted walking through the crowds at an exhibition.

Animal lovers and their pets lined up to register for the Pet Expo 2025 in Bangkok, Thailand, on May 3.

While waiting for her turn, Kati Namwan Klam spotted the reptile on a leash with its owner in the queue.

Footage shows the keeper browsing his phone while his pet lizard lounges on the floor.

In another clip, the animal can be seen lying motionless on the ground without its leash.

Monitor lizards are known for their curious and active nature, frequently exploring their surroundings and climbing, and when properly socialized, they can form strong, positive bonds with their owners.

Pet Expo 2025 is a vibrant event featuring a variety of pet-related products, services, and activities, bringing together animal lovers and their companions from across the country.