"Are you brain-dead? The slit's too big, just close it slightly so the gasoline evaporates slower," said one of them in a low voice. "Once there's a short circuit tomorrow, it won't just be a fire—it's going to explode." He even made an exploding gesture with his hands and made a 'boom' sound with his mouth.
The other one snickered and said, "Your idea's not bad. With such a large barrel of gasoline, once it explodes, the blast will be pretty powerful. We might even bring down part of the factory. They'll be busy then."
"Hehe, naturally. If our employer works it out and uses a production accident as a reason to shut down for business reorganization—for a year and a half or so—they're finished," said the guy, making another explosion gesture and the 'boom' sound again.
"You've thought this through," a voice said from behind the two of them.