Bugs Bunny and German Baron: Well, what do you know? There's the little weaner-schnitzel, now. I'll just drop him this, of my esteem.
[while flying over him, Bugs Bunny dropped a note to the German Red Baron]
Bugs Bunny and German Baron: What's this?
[Baron starts reading note, dropped by Bugs]
Bugs Bunny and German Baron: Uh, Dear baron: Roses are Red. Violets are Blue. A leghorn is a chicken. And so are you! Why that dumb-cuff, he even spelt my name, with a small b!
[Baron is back to reading note]
Bugs Bunny and German Baron: PS: I enclosed a big "B", in the flowers.
[Then, a yellow-jacket stung the Baron's nose]
Bugs Bunny and German Baron: Yeow!
[German Red Baron is in Yosemite Sam's design and characterture]

Bugs Bunny: [Closing lines & 2 directions] He's heading right for the ammunition dump.
[explosion]
Bugs Bunny: I've heard of Hell's Angel's, but I never thought I'd see one.
[Bugs Bunny then sees Yosemite Sam's spirit, rising, and playing a harp, as cartoon concludes]