The Aurora Payload Vehicle separates from Kerbin Spaceport, carrying with it the kuarq experiment payloads!
The APV does its descent burn, and begins falling through the atmosphere… faster and faster… until Mission Control notices a critical problem.
“Oh no. I think we forgot to add parachutes to the ACV!”
The ACV falls into the mountains west of the Space Center at terminal velocities… the entire vehicle is utterly destroyed! Thankfully crewed missions are reviewed more carefully! Construction begins at once on a new APV!