Onboard the USS SHARK, off of Andros Island for AUTEC, the XO has the Conn, the CO is standing by, and we're coming to PD. As the scope breaks the XO yells "ICEBERG! EMERGENCY DEEP"! 

The CO immediately shouts "Belay That...XO we're in the Caribbean. There are no icebergs here. Let me see that scope". 

After looking through the scope he proceeds to check the adjustments, and says "Damn it, XO, you had the scope on high power & full elevation! You're looking at a G**D*** CLOUD"!