I went on an interview some years ago and was asked how I'd architect a certain situation with Models and Controllers. I spent some time discussing why that wasn't the right solution for what they were trying to do, and they said thanks but no thanks.

Now to be fair to them, I was asked to do a certain task and I failed to do that task. It's pretty cut and dry.

But I also walked away glad they turned me down, because if they're going to try and force me to do something a specific way when that way is inefficient, or troublesome or just plain not the best answer, then I wouldn't really want to be working there anyway.