Imagine you are on a subway train that's making its way down the tracks when suddenly, the doors fling wide open.
20-year old Nicole Dumas told the Toronto Sun this happened in the middle of the day in early May.
When she boarded at Pape Station, the doors didn't close properly.
At Chester Station, a TTC employee put a key into one side of the door, wiggled it a bit and walked away.
As the subway train passed over the Bloor Viaduct, one door opened, the other stayed closed but as soon as the train got back into the tunnel, both doors opened.
There is supposed to be a fail-safe so if the doors don't close properly, the train can't move but apparently there was a broken part in the door so when someone manually pushed them closed, the train's computer decided there was no problem and travelled on.
The TTC says that part has been replaced and the doors are functioning properly.