"...I know what you're thinking right now. You're thinking about killing me so that I can't take your place, but since I'm thinking that too, and we have about equal physical strength, it would probably be best if we just got along instead..."
Normally having a clone for most people would mean that there's someone that has the same interests and hobbies as them and would be great to be around, but I'm kind of... erm... I wouldn't want to have to be near my clone too much.