there is a hospital for who have mental problems, mentally sick, or crazy..
,and this is story from my friend.
once upon a time, my friend was walking along the roadside, then he reach the hospital, he stop,tired and taking a break there.
. that moment, he saw 
a old man as patient in the hospital is fishing in a bucket.
my friend ask the old man."what do you get by fishing there?"
the old man reply him. " are you crazy?! there is nothing"
actually, the bucket is empty.
