Two ActuallyThe first one was when I was about 6 years old. We were living in an apartment building. It was about 11:30 pm and we heard someone running down the hall pounding on each door yelling "FIRE! FIRE! FIRE!" The apartment below had caught the building on fire and we had to escape down the fire escape.
The second was in 2006. The light fixture in the kitchen had caught the rest of the house on fire. It was a big one. It made it on the news and everything. The firemen were able to save our dog and one of our cats.