If they show you a mid-sized project it would be very hard to look at it and have a better understanding than someone who intentionally ripped it off and read u

If they show you a mid-sized project it would be very hard to look at it and have a better understanding than someone who intentionally ripped it off and read up on it themselves. That being said, I'm sure if you really grilled them on specifics you might be able to catch them off guard. The problem though is that is showing that you don't trust them from the start as opposed to showing them that you are interested to see what kind of coder they are. I would leave an interview if the interviewer seemed to only be asking questions to throw me off intentionally (I've done it once before).