Taste Test for a True Prophet

As the Biblically erudite might know, it can be a tricky business to discern the true prophet of God from the false prophet of God. True prophets can seem wacky, occasionally incorporating nudity into their prophetic exploits; on the other hand, false prophets are notoriously zany. So, how can you tell whether someone is being Biblically wacky, or merely heretically zany? I believe I have established a guiding principle from Ezekiel 4:15 and II Peter 2:20. According to Ezekiel 4:15, a characteristic of the true prophet is that he will "bake [his] bread over cow manure." According to II Peter 2:20, the mark of a false prophet is that he will "return to [his] vomit." In conclusion, when testing (or tasting) the spirits, manure=okay, vomit=off limits.

(Later clarification.) Technically, II Peter 2:20 just says that false prophets are like dogs who return to their own vomit. So, to be more precise, we can say that eating literal manure-baked goods is okay, but eating metaphorical vomit is blasphemous.