Whistle before the Hail Mary

Don Bosco's passion of working for the abandoned and vagabonds of Turin gets going in the sacristy of the church, on 8 December 1841. Don Bosco, while vesting for Mass, hears the sacristian chasing out a poor frightened boy who had sneaked into the sacristy to stay warm.  He calls the boy back and initiates a conversation, only to get single word terrified answers, until the question, "Do you know to whistle?"

I can imagine the joy on the face of this boy when he hears a question to which he has a joyful answer!!  I'm sure Don Bosco too would have whistled with him (although it is not recorded anywhere!).  But it is only after the whistle did they pray the Hail Mary (with Bartholomeo Garelli, reciting after Don Bosco). 

Wonder if Don Bosco had insisted on beginning everything with a prayer, where would we Salesians be - if at all, we did come to be!