I get the idea that the good lady is use to being pranked by you so nothing upsets her any more haha . Now I am waiting to hear what happens to the knife. Jeez luckily your daughter showed it to you. In SA we will phone the police and they will say throw it away. They do not even come out for many crimes..... part of our lives
It was a bit like that here, it seemed like they didn't really care. You are right with the good lady, I suspect she was like whatevs! :OD