You should go to her house and do a sankyo. That should correct the problem
About a year back, my 2 yr old daugther managed to get hold of a big scissor (pointed edge) and started running around the house with it. I panicked, went after her and I was trying to get the thingy from her hands but she would not let go of it. I did an ikkyo tenkan and very gently put her down on the floor, still in ikkyo I managed to get the thingy...
There's another incident with the wife... but I'll save that for next time