Scenario: You are on Craigslist searching for cheap electronics and come across an add for cheap E-reader. It's a bit of a deal with about 20-40% off the retail price so you contact the seller and all seems normal. You meet up to buy it and while you are discussing the E-reader you want to catch the seller off guard (in an effort to elicit an honest answer/reaction) and ask them a pointed security question (or two) that will gauge whether that person even knows enough to do anything technologically malicious.
What question(s) do you ask?
Let's assume you both are just an average Jack and Diane not cold war spies...
I submit imagine something like this:
While Jack and Diane are closing the deal Suckin' on chili dogs outside the tastee freeze, Diane says...
Diane - "Hey Jackie, do you know what the hex file signature books on this E-reader?"
Jackie sits back, Reflects his thoughts for the moment, Scratches his head...
Jack - "What's a hex file signature?"
Diane - "Nevermind baby, You ain't missin' nuth-in."
Jack - "Oh yeah, life goes on..."
Two American kids done the best they can and close the deal.
In the above scenario, Diane feels relatively confident that Jack doesnt really know enough to root a device and put malware on it so she can feel safe buying from this football star.
I realise the premise is not the most secure because anyone can lie and depending on how well you can read a poker face you may not be able to discern the truth, but I am just looking for a quasi-security theatre solution. I mean once again, we are assuming you are buying an E-reader to just read 50 shades of grey and not the latest Presidential Intelligence Briefing
Also note that this is not limited to Ebooks, Americans, football stars, or 80's music lovers.