murphy's law for a fairy godmother

1. She turns up to help a client and finds there are no pumpkins or rats anywhere for her to use as raw material for her spells.
2. She finds she's left her wand at home.
3. Her client is ungrateful (and moans about having to wear glass slippers a lot) and the fairy godmother has to resist the urge to "zap" them.  Zapping a client does not go down well amongst the fairy godmother elite.  It just isn't right and can put future potential clients off, which is the main reason zapping is frowned upon.
   
4. The fairy godmother rarely gets to go to the ball or other celebratory event prior to successfully marrying the client off to some charming prince.  This is a shame.  Most fairy godmothers enjoy a good social event but they are not supposed to show off.  The pragmatic reason for this is if a fairy godmother draws attention to what she is doing, some witch might turn up and reverse in, in revenge for that occasion when Sleeping Beauty's curse was modified.  So no partying then for our fairy godmother.
   
5. A dragon has turned up.  A monstrous, hungry dragon wreaking the usual havoc.  A magical being is needed to tackle it.  Suddenly other magical beings can't be found for love or money.  So it is down to our heroine to make sure the dragon is dispatched.  She can't rely on St. George turning up to do the job for her.