A friend was in front of me coming out of church one day, and the vicar was standing at the door, as he always was, to shake hands with the worshippers. He grabbed my friend by the hand and pulled him aside. The vicar said to him, 'You need to join the army of the Lord.'
My friend replied, 'I'm already in the army of the Lord, Father.'
So the vicar enquired, 'Then how come I don't see you except at Christmas and at Easter?'
My friend whispered back, 'I'm in the secret service.'