Question: who laughs on dark side of the moon
Answer: During the closing instrumental , beginning at about 3 : 02 , after the second chorus and leading into the final track , `` Eclipse '' , only Peter Watts ' `` lunatic laughing '' is heard , repeatedly , unlike other versions which have the speech sample `` I ca n't think of anything to say '' , then Peter Watts ' laugh and another sample `` I think it 's nice ( ha ha ha ) '' .