In a game I'm running I had a choker grappling one of the PC's using of course it's 10' reach so the group's paladin says: "I want to hack it's arm off" my question is: How should I deal with that?? What happened was that the choker had like 4hp left and when he attacked it it just died.. but that's no the point.. Again what types of penalties/effects would be inccurred/occur in order to have someone dis-"arm" someone else.