Heroes in Minutes: Tornado 2

At the beginning of Roger van der Weide's Sonic Heroes parody, Tails and Knuckles jump off the Tornado 2 as it spirals out of control, with Knuckles assuring that it'll land fine and is mostly forgotten about for the rest of the animation, until it comes back in the climax and hits one of Metal Overlord's eyes, proving Knuckles right in the end.

Example of:
Brick Joke