What OP should do is put the want ads on her grandma's bed

If God and boredom is on her side idk if a lock will stop her :/

Unless her grandmother used to be a locksmith when she had a job, I'm fairly sure a lock will stop her no problem

Almost all bedroom locks can be opened with a slide of a card haha don't need to be a locksmith, and even then who knows maybe she was one before.

Who said it had to be a normal bedroom lock, I was thinking more along the lines of a deadbolt

Unfortunately, since she most likely also lives with her parents, they might not want OP to have a bedroom lock. I know my parents would tell me to suck it up and spend time with grandma. Hopefully her parents will at least consider it.

If the locks fail get some barbed wire , that will stop granny for sure :)

Yah you should get her to find a hobby. Like gardening maybe, old people like that?

Get a nice new Christmas sweater.

Maybe what?

so much suspense

Maybe

...Making cookies would keep her busy c:

No need for a Bible to have morals

Yeah, good moral codes like stone your children if they disobey you and kill rape victims if they don't want to marry their rapist.

You obviously haven't read the bible if you say that. You're taking parts out of context and twisting the meaning around. And the parts in particular being twisted around are in the Old Testament, most of the rules of which Jesus eliminated and changed.