May be time to star shopping for tiny version of leather apron, kevlar gloves, safety goggles and a respirator. It'll teach her both a valuable lesson on why pouring soda over the blades was bad decision (presumably time with the buffers is less fun than time with the dolls and the little red pony), and she can generate some economic value to offset or may be even make up for the economic loss she caused
You said 4 years old, right? I think it's just about the right time. Though you may want to keep it on the hush side given the overreaching government...
