Mental

I recently visited a mental asylumn and I asked the director: "how can you know when a person needs to be institutionalized?" 

He said: "Well, we fill a bathtub with water and we offer them a teaspoon, a teacup and a bucket and ask them to empty the tub." 

I said: "I see, a normal person would choose the bucket because it is bigger." 

He responded: "No. A normal person would pull the plug..., would you like a bed by the window?"