Yes i do have something against banks. OCR is 2.5% and they charge around just under 6%, seemingly making an immediate 3%+ profit (look, if you think it's tiddly winks the Reserve bank thought about $10+ billion of our mortgages were on the floating rate) ...
recently ASB raised some of their fixed rates to get even more profit ... and it appears they are trying to save face now
http://www.stuff.co.nz/business/money/5409908/ASB-cuts-fixed-interest-rates