From an online search,
“For Andrews' ninth birthday, his father, who encouraged his son's sporting instincts, gave him a single-barrel shotgun with which he learned to hunt. In the process, he once mistakenly blew up three "geese," unaware that they were actually pneumatic decoys belonging to another hunter. "At the roar of my gun," Andrews recounted, the fragile geese "slowly collapsed with a gentle hissing sound." The incident so amused his father, who sorely disliked the decoys' owner, that he promptly bought Andrews a more-powerful double-barrel shotgun.”