One day a diver was enjoying the aquatic world 20 ft below sea level. He noticed a guy at the same depth he was, but he had on no scuba gear whatsoever.
The diver went below another 20 ft, but the guy joined him a few minutes later.
The diver went below 25 ft, but minutes later, the same guy joined him.
This confused the diver, so he took out a waterproof chalk-and-board set, and wrote: "How the hell are you able to stay under this deep without equipment?"
The guy took the board and chalk, erased what the diver had written, and wrote: "I'm drowning, you moron!"
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