He didn't know the first thing about teaching, Hell, he didn't even know the first thing about fighting! A shame then, that his forged documents painted the picture of an accomplished and skilled warrior. Now he's trapped teaching students his own age how to be hunters, when he doesn't even know himself!

After Bespin and before Endor, Darth Vader is shocked to discover that Luke and Leia are twins. He's even more shocked when Imperial Intelligence reports that Organa and Skywalker are, erm, a tad closer than previously suspected. Humor, mild AU.