Black vs. Pettigrew: Why was Black Laughing?

[freya122000]

No: HPFGUIDX 44237

I to must respond to this.  I think Black was laughing because he 
knew that he had been set up.  Peter was the leak and had sold him 
down the river.  I don't think he was heartless but I think his best 
freind was dead and he really did feel like it was all his doing.  He 
knew Dumbledore would think that he had sold the Potters to Voldy and 
he was going down for the count and his only way out just turned into 
the rat he really was.  I think he was alittle crazy then, anger, 
fear, greif.  It was hysterical laughter, desperate, he may even have 
thought about trying to fight his way out, but he is not evil so he 
would discard that.  He is helpless and he knows it.  Freya