Love on Delivery

Love on Delivery aka. King of Destruction is a 1994 Hong Kong comedy film directed by Stephen Chow and Lee LikChi, based on the Japanese manga Hakai Noritaka, starring Stephen Chow, Christy Chung and Ng Man Tat.

After being further humiliated at the sports center by Black Bear, Ang seeks shelter at a convenience shop owned by Tat Ng Man Tat, an eccentric handicap. Tat promises to teach Ang kung fu to cure him of his weakness and cowardice, in exchange for money. However, Tat, a selfprofessed Sanshou master, is merely a swindler taking advantage of Angs gullibility, and teaches Ang useless, fantasy kung fu techniques.But to Tats surprise and annoyance, Ang is intent on being a fulltime student. When Ang loses his job and runs out of money, he tells Tat he will follow him for life. Tat attempts to rid of him by persuading him to use a false technique called The Invincible Wind and Fire Spin, a move that would almost certainly kill or at least seriously injure anyone which involves holding onto the enemy and rolling down a huge flight of stairs, using the enemy to soften all the blows of the stairs. Ang is considering implementing the move, but decides against it. However, he becomes reassured of this socalled technique when he witnesses Tat himself falling down the stairs and surviving it, though that was an accident. Emboldened, Ang thanks Tat and leaves. ........

Source: Wikipedia