Was chatting with co-workers last week, and was surprised at how many (north of 75%) did not have a fire extinguisher in their kitchen, or by their outdoor grill.
I have always keep two handy, one under the kitchen sink, and one near the outdoor grill. I also make sure they are charged and not expired.
I have only used one once, thankfully. My neighbor's turkey deep fryer boiled over and caught fire, and I grabbed my fire extinguisher out of the garage and ran over and put the fire out. Afterward, he went to the hardware store and bought several.