A great way to flesh out and get to know your characters, is to learn how they would react in various situations. For this exercise, write a scene in which a character is informed one of their body parts must be amputated. While you are writing, think about: How has my character dealt with great losses in the past? How do they feel? Does their mood change as it sinks in? (Remember to use body language when communicating moods!) Have they built defensive mechanisms about this kind of thing? Do they delude themselves or distract themselves instead of dealing with it? Do they try to blame someone?