When you’re using exaggeration for comedy, it’s often good to finish with a topper—something so over the top, that no one will mistake it for tragedy.
Even the cockroaches were walking out.
If the paragraph was the joke, this last sentence is the punchline. In this case, it’s an absurd low point.
Check the low points in these examples.
Kids didn’t even dress up as aliens for Halloween around here.
At least it was soft.