
Sodsai, 52, said she believed Big Foot was especially impressed with the scenery around the reservoir. She used to walk him around it when he was a puppy.
"He goes there alone in the morning and returns home before noon each day," she added.
Sodsai, who has put the name of her Chivas convenience store and two phone numbers on the dog's nametag, said she had received numerous phone calls from people who saw Big Foot in many places. Sometimes he had journeyed so far away from home that she needed to go pick him up.
She said the regular phone calls had eased her worries about his safety, especially now that she knew her pet was able to cross a road safely.
Lamduan Sangkhao, a drink vendor at a market near the reservoir, said she was initially intimidated by Big Foot's appearance but later became familiar with him.
"He's a cute and kind dog. And with those telephone numbers attached to his collar, I can't help but laugh," she said.