At Symbian defects were classified from P1-P4, with the inevitable shit-fights about adding magic runes to the title so everyone knows that your P1 is more important than theirs.

The day came when, after prolonged hand wringing and with stern observations about great power and great responsibility, the priority could be set to P0. But like any bunch of junkies we came off this new high all too quickly and the P-1 classification arrived, the showstopper of showstoppers.

In hindsight what I most regret is that we stuck with an integer field; we were denied the expressive power of fractionally critical issues.