When Kristina Hollie and her coworker were waiting for their bus at Harvard Square in Cambridge, Massachusetts, they couldn't believe their eyes as they watched a cute pup running errands with his mama on the bitterly cold day.

The dog's owner was getting ready to go into the post office, and of course, sadly she wouldn't be able to take the pup indoors with her. So, she tied the dog to a tree, and what she did next warmed Kristina's heart.

“It was very cold and windy out,” she said. “I noticed that he was visibly shaking. She obviously noticed too because she immediately took off her jacket and covered the dog as he sat. Maybe she thought he would kick it off, so she bent down and zipped it up around him!”