I just put some oil in the oven to heat up to cook potatoes. It was in for less than 30 seconds when I heard this popping noise so I opened the oven to take the tray out and loads of flames burst out!
I closed the door and turned the oven off, and the flames died down but I'm afraid to turn it back on to cook...
What ignited the spark? What will happen if I turn the oven back on? Is it really dangerous or has this happened to people before?