I already had a previous succesful interview the day before and just went to my current employer out of decency.
The previous day gave me so much confidence, that I dominated the complete interview and asked them what they could offer me, that I would choose them.

On my way home they send me a text how much they were interested in me and that they will show me code as I demanded.

I took the job because the were as much interested in quality, as I am.