a few days ago, I putted a pot on the gas stove to have lunch.
by the way, the pot and a pot stand adjoined each other.
but I didn't know that.
I turned on the gas stove.
and I went into my room to do something.
after a while, mother came back home and knocked.
so I went to open the door.
and I saw that the pot is burning.
(more precisely, the pot stand that is under the pot is burning)
I was surprise and went to kitchen to put out a fire.
fortunately, I could put out a fire.
If my mother didn't came back that time, I didn't know that and the fire might grow too much to put out.
this happening made me remind again that whenever I use the fire, I should be careful.