"if it tests out successfully in Production, I’ll install it on the Dev server"
Ah yes, Production In Lieu Of Testing (PILOT).
I drink because I've spent two days trying to persuade somebody that the issue was not in the database, and that they needed to restart a service on the app server, then it would work. He threw his toys out of the pram, but his colleague restarted the service and... it works. Of course.