[ 非原创。。。]
During a visit to the mental asylum, Peter asked the director, 'How do you determine whether or not a potential patient should be institutionalized?'
'Well,' said the director, 'we fill up a bathtub, then we offer a teaspoon, a teacup, and a bucket to the potential patient and ask him or her to empty the bathtub.'
'Oh, I understand!' Peter said. 'A normal person would use the bucket because it's bigger than the spoon or the teacup. Right?'
'No, a normal person would pull the bathtub drain plug.' said the director, 'Now, let's take care of you, Peter - do you want a bed near the window?'
<Unknown date>
