A UPS driver started a Facebook group five years ago called "UPS Dogs."

The group is dedicated to photos of the dogs (and sometimes cats!) that UPS drivers meet on their route.

UPS drivers from across the country submit their photos and videos to be featured on the page.

A little-known perk of driving a UPS truck is getting to know the customers on your route. The best perk? Hanging out with their furry, tail-wagging friends.

A Facebook group called "UPS Dogs" is going viral. The group, started by 17-year UPS veteran Sean McCarren, features adorable photos of dogs (and sometimes cats!) that he and other drivers encounter on their routes.

"We have about 30 drivers that post on a regular basis," Sean McCarren, who started the Facebook group five years ago, told INSIDER. "Dogs are really important to people's families, they are like their son or daughter, so you try to talk to them and treat them as such. What's funny is — ask any delivery driver and they will tell you — dogs just jump up into the vehicle, wanting a biscuit. Sometimes I'll go through a couple boxes of treats a week."

And yes, corporate approves of the group:

"Yes, we are aware of that site," a UPS spokesperson told BuzzFeed. "It’s a good example of the relationships our employees build with their customers, two- or four-legged!"