However, they had to engage in a fistfight with some of the enemy""s crew, after which Khan disappeared ahead of them.Jerry: Oh, your mother.Mrs.Vale: (a superimposed flashback) Could we try to remember that we""re hardly commercial travelers? It""s bad enough to have to associate with these tourists on board.Its tagline was:The story of a gambling man and a hustling lady and he empire they fashioned from the wilderness.Rather than the extreme punishment of expulsion, they both received detention.Once they were ensconced in their studies, they learned about repotting living Mandrake roots from Professor Sprout in Greenhouse Three, and were introduced to their new Defense Against the Dark Arts teacher - Professor Gilderoy Lockhart - who showed them freshly-caught although mischievous blue Cornish Pixies.