It's funny in my country Vol.6: My Neighbour and his Native Doctor

Bisi my neighbour was sick and invited a native doctor to his house to cure his illness. I warned and pleaded with him, begged him to go hospital instead, but he refused.

He went inside his house with the native doctor, after the native doctor finished doing his enchantment, he told my neighbor that the sickness is incurable but can be transferred to another person and Bisi greedily agreed.

(This joke was not originallyy composed by me, it was sent to me on a social media platform and I decided to share, with a little modification I made)

The native doctor then told my neighbour to shout "taarh" at the first person that enter his house, and the sickness will transfer to the person and the person will die, unless the person reply with "retaarh" to backfire.

The native doctor then left in a hurry forgetting to collect his money for the service he had rendered.

Bisi sat down in his sitting room and kept his door opened patiently waiting for the first victim that will pass through that door.

The native doctor then remembered that he forgot to collect his money and decided to go back and collect it.

Immediately the native doctor entered,Bisi shouted "taarh" and the native doctor shouted "retaarh" and my neighbour shouted again “reretaaarh" the native doctor replied “rereretaaaarh".

18hours in, they are still on the battle with none of the two men showing any sign of giving up, and the backfire keyword "retaar" has grown enormously in length for me to post here.