I read this story in one of my German Books: W. Busch: Magier, Zoellner, Juenger (Page 165)

A pastor was asked to conduct the funeral service for a high ranking army officer. As you can imagine there were many in  uniform present at the service.

When the pastor drove home from the service using public transport, he met up with quite a good number of the people, who were also present at the funeral. They did not recognise him, because he did not wear his special robe.

They talked about the service quite freely and in a critical manner. Especially one high ranking officer yelled again and again, “That was not a funeral service, that was not a funeral service, that was ‘propaganda’ for JESUS!”

The pastor was sitting somewhere on one of the back seats – rejoicing. He was thinking, “Man, you got the point I was trying to get across to all of you at the funeral service:  ‘Propaganda’ for the Lord Jesus Christ.”