If you wanted an adrenaline rush last week in Toronto, you didn't need to schlepp all the way to Wonderland. Instead, you could have simply taken a trip on the Red Rocket.

That's because last Friday, at around 6 p.m., the door on an east-bound TTC subway train stayed open as it sped over the Bloor Viaduct. One passenger caught the whole thrilling ride on camera.

@CityNews TTC tried to fix door of a subway Car on line 2. Then TTC let the train go from Castle Franck to Broadview pic.twitter.com/Er0YC7ysr5

— KJ (@NEWSFORWORLD) May 27, 2016

The TTC says the incident was the result of human error. The Toronto Star reports that the individual responsible has been fired.

As the Star writes, the subway train can't leave the station if a door remains open. If one won't close, there are certain safety procedures a train guard must go through, including evacuating the affected car and barricading the malfunctioning door.

Photo by David Dang via the blogTO Flickr pool.