Laffy Taffy has had enough of your shit, and admonishes your laughter.
They’re more interested in hearing your awkward, “heh heh…ohh” sad laughing, as taffy glues your fucking mouth shut, because – how do people eat that shit???
Regardless, I’m pretty sure the first draft of this joke read:
“If a train full of poop and a truck carrying gasoline crashed together, what type of sound would it make?”