We will occasionally mix one of these in. We are really looking for folks that can actually say 'no'. In some cases, we will keep tossing out absurd requirement on a 'how would you' project. One that some use is asking for a method that does not exist -- we are hoping they know the language well enough to say 'you mean this or this?' or how they can actually say I don't know, but I know where I could look it up.