A squirrel has gotten into the SI/Time Inc building and it has completely wreaking havoc & owning security. pic.twitter.com/Fn8WZmsKOo

— Jimmy Traina (@JimmyTraina) June 20, 2017

This pesky squirrel got into an Manhattan office building Tuesday, “wreaking havoc” while giving security personnel a run for their money.

Sports Illustrated writer Jimmy Traina tweeted hilarious footage of the adorable rodent running up and down a staircase railing — holding security guards and company suits at bay.

“A squirrel has gotten into the SI/Time Inc building and it has completely wreaking havoc & owning security,” Traina wrote.

At the end of the 102-second clip, it appeared the squirrel had been coaxed off the stairwell and was being shooed toward an exit.