I don't remember much "luck", but here's a kinnda lucky one. I was doing a dragon mission, landing on all jools moons. I underestimated the fuel requirements. Needless to say, I managed to get a dragon innto a flyby of Laythe, and managed to slow down. Only problem? low fuel. So after 5 quickloads, I did a last second burn, in an attempt. Even so, I ran out of fuel. Coming at laythe at 50 m/s ready to say goodbye... then I heard a loud splash of parts crashing... but then, the dragon was ALIVE! Remarkibally, it did not destruct. A weird thing is however, is that it actually got underwater, and stayed down, not surfacing. So I evaed all 7 kerbals, which gradually floated up. They are still there.