A woman aboard a shark-tagging boat decided to pet a great white. Like a dog. But the shark, unsurprisingly so, did not react like a golden retriever.

In a startling video filmed off Tybee Island, Georgia, the woman leans over the boat and reaches toward the predator swimming alongside. For a moment, everything seems perfectly calm. Then the shark whips its head around and lunges. Her hand retreats. All fingers accounted for.

The woman, identified only as Jen, was participating in an expedition with Knot Lucky, a Savannah-based nonprofit that takes military veterans and their families fishing and helps researchers tag great whites. Check out the footage below:

View this post on Instagram

Program founder Jimmy Armel joked that Jen was treating the shark “like it’s the family dog.” When it reacted, he wrote, “Everybody on the boat felt that one in their chest.”

Armel emphasized that the crew had control of the situation and Jen was never in immediate danger. Nobody was injured.…