He teaches a Hindu man about Christianity and gives him a Bible.
He comes back a week later and sees a picture of the pope among all the other gods at the man's house.
"Why do you have a picture of the pope there?"
"Isn't he the reincarnation of Jesus?"
The missionary told him that Catholicism isn't as good as protestantism, and he should take the picture down, then left.
The missionary came back a week later and the picture had been replaced with a picture of his pastor.
"Why do you have a picture of my pastor there?"
"Isn't he the reincarnation of Jesus?"
The missionary explained that Jesus wasn't reincarnated, gave him a cross to put there instead, then left.
The missionary came back a week later and saw that the picture had been replaced with a Roman soldier.
"Why do you have a picture of a Roman soldier there?"
"I was confused about the cross, so I read about it. You never told me your god was defeated."
