Testers
I don't think I've ever met a good software tester. I want someone to abuse my code, like really give it a beating. I'm talking creative and shameless abuse. I want someone to find bugs!
To many times have I known about glaring issues with software that has gone to QA only to get the green light for prod. Needless to say I go patch the bug anyway, which should probably call for another testing cycle. But what do I know? I'm just a developer who shouldn't be testing his own code.