Understandably, this FREAKED people out.
Drivers thought the zombie apocalypse was upon them when a fellow motorist suddenly jumped out of his vehicle and began headbutting other cars.
"It was at about 7pm, I was heading down to Freeway South and all the traffic just stopped," a man recalled to WA Today. "It was like the movie World War Z, where the zombies just run into cars, he was exactly like that and I thought 'oh sh**, it's the zombie apocalypse.'"
::image via youtube screenshot::