In favour of providing me some amount of money, the lendor has taken a signed blank promissory note from me. I am yet to pay remaining amount to him, but he is now looking to cause trouble to me with those blank notes. I want to know, what possible legal actions can he take against me? Can he drag me to jail by instant legal action(as he is looking to send me to it) with the help of those notes. What possible legal precautionary actions can I take to prevent from his wicked actions, before he hit me with some legal stuff?