Why do puppies hide on Halloween?

Puppies may hide on Halloween due to the loud noises and commotion associated with the holiday, such as trick-or-treaters, fireworks, or other sudden sounds that can be startling. The presence of costumes and masks can also be frightening for dogs, as they may not recognize familiar people. Additionally, the overall chaos and unfamiliarity of the environment can lead to anxiety in young dogs, prompting them to seek safety in hiding spots.