Question: How can you get rid of fruit flies without poison?
Option 0: Turn off all lights in the area but one, when all the flies gather there, light a flashlight, then turn off everything but the flashlight, you'll kill all the fruit flies with the flashlight, they'll fly right into it.
Option 1: Turn off all lights in the area but one, when all the flies gather there, light a candle, then turn off everything but the candle, you'll kill all the fruit flies with the candle, they'll fly right into it.
Answer: 1