A conversation took place not too far and not too long ago.
X has gone through the firewall rules and he become puzzled on some of them. Desperately need clarification, he consulted Y, the firewall administrator.
X: Why do you need this particular rule that allow these IP addresses access to the Firewall itself?
Y: Ohhh.. that's one of the standard rules by the manufacturer for maintenance purpose.
X: Do you really need this rule that allow maintenance from a few segments?
Y: I can't remove or edit that. Every time I tried, it gave warning message.
X: Huh? What was the message?
Y: "Do you want to proceed?"
At that juncture, X was not sure to either laugh, educate or keep everything to himself.