I was about to comment something sarcastic, then I googled you and instead I'll just say thanks!

I don't mind if you say something sarcastic, but I am happy to say "you're welcome!"

"job security" coupled with "I was his replacement" says that his plan worked about as well as his code...

Indeed. It was quite the entry to the company for me as well. "What are you working on?" "Fixing Dave's code." "Good luck."

But my most auspicious entry to a company was where the guy I was replacing had been arrested for stealing data from a competitor. My first two days were spent recovering logs, downloads and other traces of what he had done and handing it over to the lawyers. (the circumstances were not mentioned in the hiring process)

like shoplifting. Most large chains know exactly how much "loss" they experience, and they just raise their prices to cover it. Theft and fraud is a part of life unfortunately...