…to learn how to use Screen effectively.
So that Network events without times associated with them that occur during your script execution that has to be done after hours won’t kill you scripts.
Rule #1 of System Administration: when writing error checking in your scripts, never think to yourself — “by jove, I think I have it! All that could cause me a problem now is a network interruption”. Because you’ll get a network interruption.
That, and saying “by jove” is passe.
[update] It didn’t have a time on it on Monday :-).