Overflowing Kitchen Sink...  

I am a bit confused of your wording, and therefore ask that you clarify for me what you mean. I am unsure as to whether you mean "they do comb their hair while on the street" or not.

Hair can get into the pipes by not only a floor drain but also a bathroom shower drain. Little Hairs from shaving legs, arm pits, etc as well as washing hair can cause the drain to pack up. I am glad that you found the source of your problem, though, and that it was fixed.

Awaiting your clarification, I hope you have a great day.

Hey that is something new to me. Now I know why JApanese always have a bad hair day. LOL

Anyways, I also notice that in our bathroom it is really common to pipes get clogged and it's always because of hair. But i think it's hard to avoid to put hair on the floor of bathroom since while taking a bath it will fall. I myself didn't give a look at the drainage once i went out of the bathroom. So I might only ask the maid to do it for me. Anyways, thanks!

They make little things like strainers that fit right into your sink drain or bathtub to catch hair and other little things before they go down the drain. They don't cost much. Maybe you can find something like that to use.

I just think that we need learn something from them.
We should brush up our eyes to pay more attention to the world.For we need learn something advanced.

In our bathroom there are a strainer over the hole that whenever we wash our hair or bath the hair is caught on it. This prevent clog. Maybe you can put one in your bathroom if you do not have one before. Or you do not want one of these while cleaning the bathroom you can use one of those over the counter chemical that is use to unclog drain. Even in the kitchen this is use because there are times when small food particles are caught in the drain, so this is very handy to have in the house.