Gus: "What are you doing?"

Shawn: "I am teaching this donut a lesson. What, Gus, we're crime fighters. We're legally required to eat donuts." 

Gus: "Yeah, but where did you get that?"

Shawn: "Donut shop."

Gus: "Shawn, there's not a donut shop within ten miles."

Shawn: "Donut cart... Donut fairy."

Gus: "Shawn!" 

Shawn: "Ooh... That wasn't a jelly donut."