Collected privately in an empty hallway while his friends played a horror game in the other room, which he returned to after the interview. I asked them if they knew, “the scary story where a girl gets her hand licked,” or, “the hand lick dog story.”

The informant most likely first heard the story in summer camp at the age of 11.
“So, um… I think a girl was scared of monsters under her bed, so, um, her parents got a dog and the dog lived under her bed, and whenever she’d get scared, she’d put her hand under the bed and the dog would lick her hand and she’d feel safe. And then one day, she got scared and put her hand under the bed and something licked it, and then the dog ran into her room… I mean there’s probably more to it than that, but that’s… as I understand the plot of that story… The dog may also – there, there’s probably a version of it, if not immediately, where the dog is dead.”
This version of the story interestingly does not include the titular message of, “Humans (or People) can lick too.” In fact, it does not involve the dog dying. Insead, it simply presents the dread of the intruder currently licking her hand by having the dog run into the protagonist’s room. It does, however, specify that the dog generally licks her hand from under the bed. This version does not specify the dripping noise that wakes up the protagonist that appears in many versions.

An analysis of several versions of this story, as well as some folkloric history, can be read here: https://www.thoughtco.com/humans-can-lick-too-3299487. Additionally, a video portrayal of the same story can be seen here at http://urbanlegendsonline.com/humans-can-lick-too/, in which the girl actively sees her hand being licked by an intruder, and does not see her missing (presumably dead) dog.