Ok, here are some beliefs of the hoteliers...
There is at least one permanent room which should be left vacant at all times. No matter how full the hotel is, they are not to sell that room(s) to any guest. It is said that the special room is 'reserved' for those 'special visitors'.
So, if you plan to stay in some hotel, always book in advance. Try to avoid walk-ins. If the receptionist tells you there's no more room available, do not insist to get one anymore or try to bribe them to give you a room. If you do that, most of the time the room you have will be that 'special room'.
Sometimes those 'special visitors' might go to other rooms also, so here's some tips on how to protect yourself.
Before entering your room, always knock on the door first, even if you know the room is vacant.
After you enter the room, if you feel very cold suddenly and have 'chicken spore', leave the room quietly immediately and go to the reception to request to change room. Most of the time, the receptionist will understand what's happening.
After you enter the room, immediately switch on all of the lights, and open the curtain to let the sunlight in.
Before you go to bed, arrange your shoes so that one of them is upside down. Some say this represents yin and yang to protect you while you're asleep.
Always leave at least a lamp on while you're sleeping, preferably the toilet lamp.
If you' re staying alone and they have give you a twin bed, do not sleep with the other bed vacant, try to put your things like luggage, on the other bed before you sleep.
When you enter your hotel room, look for the Bible. Most hotels place the Bible inside a drawer, however, if upon entering, you see the Bible on the table, DON'T STAY IN THAT ROOM. It means 'special visitors' are there.
If you see the Bible opened up on the table, LEAVE THAT ROOM IMMEDIATELY and request for a change of room! It means the 'special visitor' is really creating trouble in that room!