Rabbi Akiva was walking home one night on the same path he always traveled, except that this night was incredibly foggy and he missed his usual turn off the path.
Soon he encounters a massive fortress.
At the gate the Rabbi hears the voice of a guard yelling to him from the wall, “Who are you and why are you here?”
Upon hearing those words, the Rabbi asks: “How much are you paid for your work?”
“Two shekels a day,” the guard responded.
Rabbi Akiva then looks up at the guard and says, “I will pay you twice that if you follow me to my home and ask me those very same questions every single morning.”