I've discovered that the trick to this meme is to go beyond the obvious context - the one that popped into your head and made you giggle at the sentence to begin with.

As for this one - it was overheard in the tech room at NASA by an astronaut about to go into space for the first time. No one ever knew why he ran away screaming and took a job driving an ice cream truck - except for a guilt-stricken head engineer.