I mean I just have a fear of someone committing a crime with my gun and it being traced to me. If I know the person its a different story but some stranger, who knows what they are going to do. Is there anything that would protect me from something happening? I mean just saying you sold the gun isn't going to get you off the hook in an investigation will it? I may just be over thinking this but what is the harm in getting a bill of sale just to be safe? You would do that for a car wouldn't you? What is the difference?