https://www.njlawblog.com/2005/04/articles/litigation/livestock-and-breeding-animal-warranties/

This case was decided by a judge in Hunterdon County, and was the talk of the courthouse during the trial. A lifesized photo of Diego commanded the courtroom. As you can see the case was decided on a warranty theory.In its very last sentence,the blog informs usof the judge's determination that this was not a mutual mistake.

Imagine that you are a judge writing the opinion about the case. Please write two to three paragraph opinion explaining to your reader why this is not a mutual mistake. Make sure to use proper legal terminology.