Had a boss that was not going to let me keep our original data around as a backup, because they said "if you're that convinced that we need the backup around then you must not write very good software". In short, their way of saying I must be a shit developer if I want backups.

Nah bro we keep backups because there's bound to be fuckups, I'm trying to plan, not play petty mind games and stroke your ego.