Why did Peter Pan cut off Captain Hook's left hand and feed it to the crocodile?

Because he wanted to stop Captain Hook from Capturing Molly in "Peter and the Starcatchers." So at the end of "Peter and the starcatchers" Peter Pan used his dagger (little sword) to cut off Captain Hook's left hand. Then Peter Pan said to Smee when Peter Pan was holding Captain Hook's left hand "Hey Smee it's me hand pick me up hand". And After that Peter Pan fed Captain Hook's left hand to the Crocodile which is the alligator from Peter Pan. The crocodile's real name is Mr. Grin. Captain Hook was oringinally as Black Stache. Black Stache was renamed to Captain Hook after when Peter Pan cut off Captain Hook's left hand and fed it to the crocodile.