See, there's where you're going about it wrong. He's an old man, so he needs the old man chores!

[There is a twinkle of mischief in his eyes.]

After all, once you get old, your senses start to dull and you can't smell as well as you used to. That's why old guys clean out the animal stalls in a barn. The smell doesn't overpower them since their noses are broken already. So that's the perfect chore for him.