Jeb had just delivered a satellite and found he still had heaps of fuel (In fact, he had barely used half of his second ascent stage). A quick check of the available contracts determined that there was money to be made - A landing on the Mün was quite possible.
Now, Jeb did not have anything one could reasonably call a "lander", just a space ship with a ring thruster that he thought could maybe be stable enough to stand on its tail, so off to the Mun he went. Orbit achieved, EVA & crew reports to collect some science, and some of the funds were already flowing in. Mission Control suggested he'd done enough, and returning to Kerbin was the wise course of action. Jeb agreed, and set his course for a landing - on the Mün. He wanted to be first to kick Münar dust. Did I mention that due to a serious oversight, his RCS fuel was long since spent?
The descent was looking pretty smooth, until a final bit of sideways drift and a substantial slope sent the rocket crashing onto its side and careening down to the bottom of a crater.
Jeb got out, took a soil sample, planted a flag (One small crash for a Kerbal, ...)
Back in his rocket, Jeb fired up his engine, dug the nose in and flipped the ship end over end. As the craft flipped around, he held back, then went to max thrust as soon as the nose pointed up. At this point, he discovered that the crash had apparently knocked out his engine's thrust vectoring.
So, constantly tumbling along, with minimal electric charge to run the underpowered reaction wheels, and with careful bursts of throttle when pointed in the right direction, Jeb slowly got himself up into Münar orbit, then into a return vector to Kerbin, finally landing safely to the west of the K2 range not far from KSP. With the science safely returned and the extra contract completed, Jeb had easily paid for his mission and then some!