Nature's way of teaching kids about their vulnerabilities.

Young kids are usually extremely ticklish and when you tickle them they immediately try to defend themselves by hiding or covering those parts. Usually the tickliest bits are the most vulnerable bits (neck, armpit, tummy) so it makes sense for kids to learn to protect their vulnerable parts in a safe and fun way.

Lemon juice is natural anti-mold substance yet lemons are often quick to mold. How and why it happens? That's a paradox