presidents candle dinner

One day president and his wife sat for the dinner and suddenly realized that power was gone. fortunately there was a candle on the dining table and they lit up the candle and continue their dinner. 

Presidents wife : "It's too warmth here! "
President : "Wait I will witch on the fan" .
President stand up and walks towards the fan.

President Wife : "Are you mad? If you switch on the fan candle light will be gone!"