Place it just after the scene sets up the unfair workload, so the punch lands on the chores themselves, then follow it with a laugh to release the tension and finish with a drum sting when the job is finally done.
關於此聲音
This nine-second clip has Eric Cartman singing his work-song joke built around the line master got me working, in his high nasal voice over a lively, over-the-top tune. It feels cheeky and awkward at once, funny because the cheerful singing clashes with the forced-labour premise. It comes from South Park, where Cartman performs the bit as a piece of dark shock comedy.