WRONG number

So I have a wrong number friend. Her number is stored in my phone as 'WRONG number' and she calls at least once a week. In the beginning I tried to get her to stop calling me, as I am not her son-in-law Brock. She said, "no I can't delete your number in my phone because I already entered his correct number and what if I accidentally delete his real one?" She called again. I asked her to please get with someone who can help her delete my number and keep Brock's real one.

That was months ago. No more working with her, I just let it go to voicemail and she gets the picture that I'm not Brock.

And then calls back again a few days later.

Today Juan decided to mess with her. He answered in a creepy low voice, "yes this is Brock". He kept saying Who is this? and then she asked him, what are you? "A human" Juan answered. The point was to scare the lady away from calling my number. Instead we further confused her. She called back again, "What is wrong with you Brock?" And Juan said, "Nothing, don't call again."

Poor woman thinks her son-in-law hates her. Maybe she'll call back again, get my normal voicemail, and realize what happened. Or maybe not, I'm pretty sure that woman is always in a state of confusion.