A London, Ont. couple has pleaded guilty to four counts of animal cruelty after they left their puppy locked in a bathroom during a two-week vacation.

The Chihuahua mix was found after a superintendent heard cries coming from the couple's apartment on Belmont Drive.

The London Humane Society responded to the superintendent's complaints by obtaining a search warrant to enter the home on Jan. 6, 2015.

The puppy was found with an empty water dish and fecal matter all over its body, said Judy Foster, executive director of the London Humane Society. Foster estimates the puppy had been there for about three or four days before it was rescued.

"It's staggering that this puppy was left alone," Foster told CTV London. "It's absolutely staggering. It was a nine-week-old puppy."

Shelley Anderson and her family adopted the dog – newly-named Peanut – after she was found in January. Anderson said it was clear the puppy had been through a lot.

"She's not very trusting," she said. "So we're hoping in time it'll come around."

London residents Gabrielle Penney, 20, and Kyle O’Neill, 26, pleaded guilty to causing and permitting distress and failing to provide necessary care and appropriate sanitary conditions.

The two were given six-months' probation and charged a $400 fine. They are also prohibited from owning or caring for an animal for 10 years.

Anderson said her heart broke after seeing the condition the puppy was left in.

"Now we know why she follows us around so much," she said. "She doesn't want to lose her mom and dad again."

With files from CTV London.