In a mental hospital, a doctor visited 3 of his patients

he saw patient 1 reading a book and says "Wow, you're improving" patient 1 says, "I'm just reading a book" then, he saw patient 2 writing and says "Wow, you're improving too" patient 2 says, "I'm just writing a poem"

But then, he saw patient 3 sitting on the table the doctor exclaimed "what are you doing?!" patient 3 says, "No Doc, I am lamp" when the doctor dragged patient 3 down the table, he heard patients 1 and 2 shouting:

""WHO THE FUCK TURNED OFF THE LIGHT!""