Hold on to your hats.

Toronto Zoo officials have launched an investigation after a video posted to YouTube on Saturday showed a woman jumping a fence at a tiger enclosure, apparently to retrieve her hat.

The unidentified woman can be seen climbing over the first of two fences separating the Sumatran tigers from zoogoers, as one of the cats anxiously paces back and forth, the CDC reports.

Witnesses can be heard shouting at the devoted hat-wearer, with one person in the video calling her a “moron.”

"You're a bad example for everyone else's kids," another voice calls out.

While the woman wasn’t in danger of being attacked by the tigers due to the second barrier, Toronto Zoo representative Jennifer Tracey told the CDC she still could have hurt herself and the animals.

"She easily could have broken an ankle from jumping over," Tracey said. "The barriers are there for a reason. They're not only there for the visitors, but they're also there to protect the animals in our care.”

Zoo officials have not been able to find the woman in the video and are asking witnesses to come forward with any information.

The incident comes just days after a Florida zookeeper was mauled to death by a tiger. 38-year-old Stacey Konwiser, known as “The Tiger Whisperer” at the Palm Beach Zoo, was attacked inside the tiger’s habitat while preparing for a show.

According to the Toronto Zoo, there are only about 350 Sumatran tigers left in the wild.