On the bustling streets of Tumbletown, every Sunday, the flea market was the place to be. People from all walks of life gathered to either sell their antiques, oddities, and "priceless" possessions, or to hunt for treasures among the heaps of... well, junk.

Mr. Barnaby, a tall, gangly gentleman with spectacles almost perpetually slipping down his nose, was a regular. He sold what he proudly claimed to be "antique air." In reality, these were just old jars he found in his attic. Every week, he'd enthusiastically explain, "This air is from 1929, the time of the Great Depression! Breathe in history!" Most just walked away, but occasionally, a gullible tourist would cough up a few bucks for a jar.

Across from Barnaby was Sarah, a young woman selling "vintage" clothes, which were actually just her unsuccessful online purchases from last season. She'd cheekily market them, saying, "These were in vogue... three months ago!"

Next, there was Granny Gina, with her infamous "snake oil" which she promised would cure anything from a balding head to a broken heart. It was just spiced olive oil, but her theatrics – which included an impromptu song and dance – ensured she had a crowd.

Things always went smoothly at Tumbletown's flea market until one Sunday, Mr. Higgins arrived. Higgins was known to be Tumbletown's most notorious, yet unsuccessful, prankster.

Seeing an opportunity, he swapped Granny Gina's snake oil with Sarah's scented candle wax. When a man complained about his "still bald" head, Granny Gina sang even louder, ensuring the wax would "seep in and sprout hair."

Higgins then whispered to a kid that Barnaby's jars contained ghost air. When the kid opened one and screamed, "I've released the ghost of 1929!", chaos ensued. Jars crashed, "vintage" clothes flew, and Gina continued her ever-louder singing, convinced it was all part of the show.

The climax? Higgins attempted to prank Mr. Barnaby by placing a whoopee cushion on his chair. But Barnaby, having seen it all in his years, sat down with exaggerated care, ensuring Higgins was the one who got a surprise!

The aftermath saw tourists walking away with "haunted" air jars, locals laughing over the fiasco, and Granny Gina, amidst all the madness, having the best sales day ever.

And so, another Sunday passed in Tumbletown's flea market, proving once again that one man's junk is another man's comedy.