Holy Spirit is watching my bike

A little boy stops in front of a church with his bike and he sees the priest come out. The priest says "Come inside, I want to show you something". The little boy says to the priest, "But somebody will steal my bike". The priest says to him "Don't worry, the Holy Spirit will watch it".

So the little boy goes inside and the priest says, "Let me show you how to do the sign of the cross. In the name of the Father, the Son and the Holy Spirit, Amen. Now you try it". So the boy says, "In the name of the Father and the Son, Amen". The priest says, "What happened to the Holy Spirit?" The boy replied "He's outside, watching my bike".