“Treat everyone with politeness and kindness, not because they are nice, but because you are.” – Roy T. Bennett
I am sure you have heard of the five-second rule, I am pretty sure my family would extend it to the five day or possibly even five-year rule. But the ten-second rule is something completely different.
The ten-second rule says that is somebody cannot fix something in ten seconds or less then you should not point it out.
An example is someone who has lipstick on their teeth, or their tag is sticking out, tell them. It is an easy fix and they will probably be really grateful for you doing so.
But if someone has crooked teeth, or if their clothes do not fit them properly please do not point it out. I am sure they are already painfully aware of the situation, and they cannot fix it in ten seconds.
Pointing something out that people cannot easily fix is unnecessary. Most of the time if they cannot fix it in ten-second it is an insecurity of theirs so do not make it worse by feeling the need to point it out.