Random stuff:

I remember in primary school there's this song that goes "look right look left look right again" when crossing the road. Then I wondered why you look right twice and look left once.

Recently I realised that it's because the cars always come from the right side when you are standing on the kerb.
Unless you are in Orchard where the road is one way.

Which makes me wonder if the primary schools in, say, US, learn "look left look right look left again" cos their roads are different.
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If you're from RI, you'll remember that the headmaster made a speech about the NUTS(No-U-Turn Syndrome) where in Singapore, only places where U-turns are allowed have a sign that indicates so, and elsewhere it is assumed that U-turns are not allowed. Whereas in other places, only places where U-turns are not allowed have a sign that indicates thus, elsewhere it is assumed that U-turning is allowed. As such, it was said that legislations that specify what are allowed would stifle creativity, and we should instead only specify what is not allowed.

It is only recently that you'll see a sign with a bold circle around a cigarette. This specifies that smoking is allowed only in that area, and not elsewhere in the coffeeshop. This makes more sense than putting a "smoking prohibited" sign outside the yellow box area because the yellow box area is always much smaller than the area outside it.

So does this stifle people's creativity about where smoking is allowed? Perhaps, but it doesn't really matter.
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The popiah stall with great service and great popiah closed down.
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Many stories in Doraemon speak of Nobita getting bullied, Doraemon giving him a gadget that makes him more powerful than the bully, Nobita punishing the bully, and finally abusing the power that Doraemon's gadgets confer to him.

Perhaps the author of Doraemon wants to teach us that power corrupts.