My first Mother in Law was mad and never left her room. So didn't see much of her.
My second Mother in Law lived in New York and never met her.
My third Mother in Law is great. We have so much in common. Like our age.
She knows what we do and knew when I first met Eva what I did. She has been to live with us when Eva was home from the hospital a couple of years ago. I swear I put on a kilo a day with her cooking.
The only problem I would of had with family knowing what I did was my Father. He would of gone ballistic. My Mother worked it out and kept it from him.
My advice is to put a lock on the office door and make sure the computer is password protected. Tell her you need perfect solitude to work and concentrate.