A fast-thinking Carl’s Jr. employee fashioned a tourniquet out of a bungee cord to help save a woman shot at YouTube headquarters.

Supervisor Michael Finney was working his Tuesday shift at the fast-food joint in San Bruno, Calif., when 38-year-old Nasim Aghdam opened fire at the video giant HQ nearby. The 21-year-old had just returned from a bathroom break when a woman stumbled into the eatery, bleeding from her calf.

“I came out and that’s when I saw her,” he told USA Today.

With the help of two other men, he carried her to a booth in the restaurant, and tried to stop the bleeding with wadded-up napkins, and then a shirt.

“She was pretty calm,” he told SFGate.

Realizing he’d need something more heavy duty, Finney raced around the restaurant office looking for something he could MacGyver into a tourniquet — and found a green, foot-long bungee cord to tie around her leg.

“All I was trying to do was stay professional, you know I have a job and I represent the store,” he said.

Police say Aghdam, who identified herself online as a vegan bodybuilder, shot and wounded three people before killing herself.

Her family said she’d talked about how much she “hated” YouTube for censoring her content and no longer paying her.