It's that time of year, when pet shops across the country start hearing that question "How much is that doggie in the window?" with more frequency.

Dogs Trust Ireland, a nonprofit animal rescue group, is asking gift givers to "Make the Puppy Promise" and not purchase a dog as a present this holiday season.

"People who give puppies as presents are not 'bad people,' but their decisions can be bad for puppies," Dogs Trust wrote on thepuppypromise.com.

>> Read more trending stories

Many adorable puppies are abandoned when their cuteness wears off, the group wrote. Taking care of an animal is a long-term commitment that includes working to train, feed and care for the puppy sometimes for as long as 15 years.

The group set six "gift dogs" up in public places through Ireland recently to bring awareness to their cause.

"It may seem like a wonderful idea at the time, but sadly, it doesn't always work out," Dogs Trust Ireland posted on Facebook. "What starts as best wishes can end in many unhappy returns for these puppies and increased pressure on animal rescue organizations."