I don't want to know what you'd do. 'Tis better that I don't. But if I think too much about what I would do if I were out to harm you —

[Then, gods forbid, he'll have a plan. A ready-made plan just waiting in his mind for malevolence to come in and claim it.]

So long as you understand. You cannot let me get close to you. Don't get careless thinking that just because I'm on the ground, I'm no threat.