Repartition and trim

For heaven's sake, don't allow the data on the device to be splatted just because some unfortunate system manager makes a mistake with fdisk! (I've been there with a plain vanilla disk - after getting over being very scared, I worked out what I did wrong, rewrote the partition table right, abd lost no data).

Surely the right answer is just to add a trim command into fdisk and other partition table tools.