I imagine two electrical components. Their nature is not important. They could be toasters, TVs, stereos, phones, computers. The only stipulation is that their circutry is exposed.

Now, between these two exposed electrical circuits stands a malicious, develish little boy, knowing full well the outcome of his "experiments". He'll stand there, ripping out wires and joining them between the two components. He'll bridge the power feeds between them, and watch fireballs explode upwards, oxidating and ulitmately destroying the delecate circuitry within.

Frayed wires and combusted capacitors lead only to completely irreparable, now non-working great toys.

They could be loud stereos, they could be beautiful LCD projection TVs, they could be hours of Battlefield 2 funness. But now, they are a heap of copper and silicone; simply for the enjoyment of one pyromaniac.