Escape Via Ignorance occurs when a case cannot be made rationally, but it is asserted that other people could or that there is evidence, but the debater just doesn't happen to know what it is.
"I don't know the Bible, but, if I did, there are verses in there that prove my point, I am sure."
"I'm not a scientist, so I don't know the answer to your question, but the scientists know. Otherwise they wouldn't be so sure of themselves in believeing in Evolution [the Big-Bang-Billions-of-Years-No-Flood-Molecules-to-Man story].