Random thoughts:

When you get a chance to see a rainbow, look out for something. Look carefully at the spot just below the violet band.

Do you see something?

No? Ahh, by the way, you allowed some UV radiation to enter your eye directly.

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I remember that quite a few years ago, when I was helping out with spring cleaning, I complained that my back ached. My mother then said, "At our age, the elderly would say that children can't get backache, because it is an ailment of the elderly. So unless you are elderly, you don't complain of backache."

Then yesterday, my mother happened to talk about growing rice (she grew up in a village in Perak). She said these:
"When it is the sowing season, the elders like our parents would shave the end of a long stick of wood such that it is sharpened at one end, and they would take two of these and make rows of holes in the ground. The children like us would get a piece of hollow bamboo that is covered at one end, which is filled with rice seeds. We'd have to bend down and put some seeds into each hole and cover up the hole with the end of the piece of bamboo. Only the children would sow the seeds; the elders reasoned that it's a job for the children because the children don't get backache."

Then I asked, "But did your back ache?"

"Of course it did!"

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I randomly chanced upon this, and I was reminded of one of zilin's post.

Chinese also got 牛头不对马嘴.