John was sick of the rats. They had plagued his entire house. He wanted to infest his house. But he did something vicious. He brought tomatoes. He poisoned all the tomatoes. After mixing the poison, he left the tomatoes to the counter where all the rats came and ate. They ate the tomatoes enjoying it all and they had no idea that John had become a merchant of death. It was their last feast. John was finally free of the plague and people finally liked coming to his home again.
Picture is from the prompt.