Homer: "That's just me, emitting healthy gas".
Bart: "Healthy my ass! All you eat is donuts and beer".
Homer: "Don't forget the four burritos Bart. And that egg sandwich on whole grain bread".
Bart: "I'm impressed Homer. Impressed how stinky your farts are".
Lisa: "Mom! Don't light the stove yet! Homers been eating healthy again, and has healthy gas"!