Yang Mei worms (via email)
Rough translation from the Chinese version(not by me):
A lady in Kunming China bought 2 kilo of yang-mei (can be bought in Singapore when in season) from a fruit vendor who informed her they are freshly picked. After returning home, she put a portion of the fruit in a bowl of salt water and let it soak while she watched TV.
Some time later, she checked the fruits and was suprised to see something wriggling in the bowl of water. She felt suspicious and decided to experiment by soaking the brightly red unsoaked ones with various level of salted water.
In the least salted water, after soaking for 3 mins she discovered 7 white worms desperately wiggling their way to the rim of the bowl to avoid the salt water. Then she soaked the same fruits in a bowl of saltier water, and after 3 mins she discovered 5 more worms emerging from the fruits. Finally she tried the saltiest water and no more worms emerged. And she also noticed the fruits had turned from bright red to patches of white.
Now she realised why whenever she ate this type of fruit she'll always ended up with tummy upset. Thus as a precaution, always rinse in salted water thrice before consuming this kind of fruit (probably apply to any skinless fruits).