The old man mended his garden, spreading home made fertilizer and cursing his failing memory. “Eyes are good for your carrots,” he tried to remember, “or am I saying it backwards?” #eyes #fertilizer #garden #oldage #forgetfulness #mistake #crime #carrot Explanation: The old man can't remember if 'carrots are good for your eyes'? He thinks that maybe eyes are good for carrots. In his brain, the concept of 'human eye' and 'carrot' have swapped places. Hence, he spreads some HOMEMADE fertilizer, containing human eyes.