Ice fishing

A man is going ice fishing. He drills a hole in the ice and hears a booming voice, "There's no fish in there!"
He begins to drill another hole and again hears the voice, "Stop drilling, there's no fish there!"
He drills a third hole and the voice sounds again, "You aren't going to find any fish there!"
The fisherman, frightened, asks, "Is this God?"
The booming voice yells back, "No! I'm the rink manager!"