This will show my age but ... as a junior developer, I was responsible for generating the 'gold' floppy disk set for our application. The second disk of five he

This will show my age but ... as a junior developer, I was responsible for generating the 'gold' floppy disk set for our application. The second disk of five held hundreds of small report template files, and without a post-disk build defrag the install process for the second disk took a couple of hours instead of a few minutes. For one release - you guessed it - I forgot the defrag on the second disk. I passed the disks to another guy for a test install, and later on in the day he test-passed the install set and send it on for duplication. Hundreds of floppy-disk sets were sent out to clients later that week, and then we started getting many irate phone calls about the slow install process. Turns out the testing guy had missed the slow install rate because he inserted the second disk, then went out to lunch for a couple of hours, and assumed everything had completed quickly when he returned. Lesson learned - have a written checklist for generating installs / deployment (we didn't at that stage).