She set off a firecracker to make it seems like she was being electrocuted. The other two were oblivious that she lit a firecracker, so the other girl runs back with something to maybe separate her from what was electrocuting her.
LOL - OK - but she was holding a power strip? And yeah, I would shoot off fireworks in my home. On the other hand, I liked the giant fly swatter the other girl showed up with.
OK - got it. I am getting too old for this stuff.