Also, if your scripts have any dev mode features for testing (such as cleaning up some database values and regenerating, removing some files etc), make sure tha

Also, if your scripts have any dev mode features for testing (such as cleaning up some database values and regenerating, removing some files etc), make sure that you are unable to execute them on production or some sort of confirmation is required. I had a script on my server that did clustering of stories from different news sources. The script also had some test methods which deleted all the clustered data and rebuilt it. I once accidentally ran the "cleanup method" on prod server and that created disaster because somehow cascaded deletion took place. I had to refer to replay log to get everything back and took hours of efforts plus a lot of pressure. From then onwards I placed a check on each of my script to get a confirmation twice before executing any such test method on prod server.