The woodpecker asks, "How do I know you won't sting me?" The weasel says, "I am a weasel, I have no stinger."
The woodpecker is satisfied, and they set out, but midflight, the weasel stings the woodpecker. The woodpecker feels the onset of paralysis and starts to plummet, knowing they both will crash, but has just enough time to gasp "How?"
Replies the weasel: "Suck it!!!”