ROTJ question
Ok, I'm sure everyone remembers that Luke decided to throw away his lightsabre after defeating his father and rejecting the dark side. Now my question is, why didn't luke decide to hold onto his lightsabre? I mean surely he must know that the emperor could use force lightning and his lightsabre could protect him, or did he just not know that the emperor could do that? I mean I woulda thought yoda would at least say 'Oh luke btw the emperor can electrocute people so whatever you do don't be a complete r-tard and throw your lightsabre down a shaft.'