Do you have big dogs? You can always release them on any Jehova fool.
Now for some real advice:
Ask her politely not to trouble you with her bogus cult, and explain that you value holidays and your birthday and that you dont ever want to see her
in front of your house again or you'll get medieval.
Thats the only method that really works, besides setting the Watchtower brochures aflame in front of her face.