Image from here
LOL, sounds rude but so true!
Try Google kiasu and see what you'll get. Yes, Singaporeans!
But you know what, I reckon not only in Singapore, even here in my small hometown Taiping I've came across several kiasu cases, on the roads/in a restaurant/during my yoga class and basically everywhere! I know it's normal for us to being kiasu sometimes, including myself. But at least don't do it blindly without considering where you are or under what circumstances!
Sometimes I think, the best solution when dealing with kiasu people is to give in. I mean trying to be generous and save the effort to fight with these people. But then I realise that giving in won't work all the time, it has to depends on situation. So when necessary I'll ignore the politeness and fight with those people, LOL. I'm like that, if you treat me good, I'll treat you better. If you treat me bad, I'll give you double the treatment.
Just like the saying, 你敬我一尺，我敬你一丈.
Any kiasu cases you wanna share?