I can imagine being the neighbor on the other side of that fence. (peeks head over fence) Hey neighbor, what's that thumping sound I've been hearing all day?

I can imagine being the neighbor on the other side of that fence. (peeks head over fence) Hey neighbor, what's that thumping sound I've been hearing all day? Oh, that? Just my knife throwing machine. Nothing to worry about - I've worked out all the math, and my smart 13-year-old wrote the code, and there's plenty of safety margin with this little block of wood I've mounted on the fence to absorb the knives. And the machine has only activated without anyone telling it to once or twice. Like I said, nothing to worry about!