I love an analogy, there's nothing better than pushing your explanation across the line with an unequivocal corresponding example in everyday life.
I think I've crossed the line this time though, I'd been asked to rate the presentation I'd just been given on a subject outside of my specific skill set; I responded that it was tricking given how left-field the idea was and that I was struggling with a point of reference, I likened the experience to that of Simon Cowell just being given a rendition of a song written and performed a X-Factor contestant and that without a performance of a professional to compare against he couldn't give it a just review.
Unsurprisingly I was called out immediately by even colleagues far across the room - I thought it was apt but apparently it's an analogy too far!