"Hang on, the demo starts soon, then let's go out and ruin their show".
Originally, the text was "wait until the sprint review is over, then
let's go out and show up again", but the scene is less funny with the
previous text. The current one turns this cartoon into a more common
situation, aka. the demo-effect.
The original text
has its root in a real story. Long time ago (not in the company I work
right now), the product owner regularly moved all reported defects to a
low priority heap shortly before the sprint review, only to put them back
into the next sprint right after the review. The goal was to shine with
a good product having non-important bugs. With this approach he kept
the release manager quiet, because the release manager was looking at
high priority bugs only shortly before the review. If there weren't any
left, the product owners were out of the line of fire.
like in Patriot Games, where the secret armed forces in the desert knew
exactly when the spy satellite flied over their hidden military camp.
They tided up everything shortly before it reaches their coordinates and
then they rebuilt the camp after it had passed (until next time). Result: pin sharp satellite images of unsuspicious cabins in the desert.