One Piece Chapter 22, page 19: YOU ARE A RARE AND PRECIOUS ANIMAL TOO

By the time young Gaimon woke up, his crew had already sailed away, leaving him behind. Stuck inside the chest, he crawled to the shore, crying out for them to return. Realizing he was stranded, he decided the treasure on the hill was all his. However, he found himself unable to climb the steep hill while trapped in the chest. Over the next twenty years, he used his gun and the "forest judgement" to scare away any other pirates who came looking for the treasure.