After a storm rolled through Pennsylvania, James Callender walked into his backyard — and found something straight out of a cartoon: a massive, squishy bubble lurking under his grass. Most people would call for help. James? He decided to jump on it — and then stab it with a stick.

James decided not just to watch, but to film what was happening on video, which he then posted on YouTube. In the video, he first carefully pokes the bubble with a sharp gardening tool, then climbs on it, trying to push the water out with his weight. The lawn beneath him sways, resembling a water mattress.

At some point, he manages to break through the shell, and the water noisily bursts out. “Kids, don’t try this at home,” he warns playfully. A female voiceover humorously replies, “There’s only one kid who can do this.” She concludes, “Now that’s what I call a good old mud puddle,” as the water gradually spreads across the property.