I had my head switched off the other day when I decided to develop some films. This film - Rollei 400s 120 got double cooked. Only, unlike chips, it didn't make them any better. I'd developed the thing in Rodinal then mixed up what i thought was fresh fix only it was more developer with a splash of fix in. Trust me, it doesn't work so well. I did fix it properly but to say it was over developed is an understatement. I rescued it a bit on the pooter.