Lacy Jean David, 28, stated that she found the fawn in Mendocino County around 2AM on Thursday. She took the animal home and posted the ad, complete with photo, offering it for $300.
Local game wardens reacted quickly, setting up a sting to meet her and purchase the deer.
Despite the fact that it is illegal to capture and sell wild animals, she was instead arrested for an unrelated failing-to-appear warrant relating to a previous drug case.
David is the most recent in a pattern of non-domesticated animal abuse and recklessness at the hands of inattentive or merely foolish people in 2016.
In May, Yellowstone National Park was forced to euthanize a bison calf after tourists picked it up, separating it from its herd, and placed it in their SUV. The tourists brought the animal to rangers, explaining that they thought the animal looked cold.
The rangers attempted to reintegrate the calf to the herd, but their efforts failed, and the animal kept attempting to climb into cars along the road. Eventually, it was euthanized.
In February, a rare baby dolphin was killed after beachgoers grabbed it and passed it around for selfies instead of returning it to the water. When they were done using the "vulnerable to extinction" animal as a prop for social media, they placed it on the sand and left it — which proved fatal.
In the case of the fawn, the animal is safe and uninjured, and is currently in a rehabilitation facility in Northern California.