Some years back, conversation with client:
"We want you to set up an Exchange server and make it the mail hub for our organisation. Can you do this? "
"Yes, provided you have what's required."
"We have bought Exchange Server licenses."
OK. Right, I'll set up the server.
"How do we get email from our other sites then? "
"You didn't say your other sites already have email, in fact you implied that this is a clean install"
"Well it is, we want a fresh install. But, we want the other sites to be able to use their existing email addresses"
"Er, Ok then, maybe we can work around that. What email system are your other sites using?"
"I don't know."
"Can you put me in touch with someone who does, then?"
[I'm put in touch with someone who clearly knows jack squat]
"As I couldn't get anything useful out of your contact, would it be OK for me to visit one of the other sites and have a look at their equipment, to see how it's set up?"
"No."
"Why not?"
"Because they won't allow an outside contractor to touch it."
"-But wait a minute, you said you wanted this site to be the email hub. That means someone here has to be the postmaster for the organisation. Otherwise, how can this be the central mail service? If they don't trust anyone here to take that role, then how can that work?"
"I don't know, I don't understand IT anyway."
"It isn't an IT issue, the same consideration would apply to paper mail. Anyway, if I can't go onsite, does anyone there know the admin password so I can take a look at their setup?"
"No, they don't."
"Huh? Then how do they maintain it?"
"Er, well, they had an IT maintainer but they've ended the contract."
"So, no-one is maintaining their IT?"
"Correct."
"Er, I see. In that case do you want our firm to go onsite and sort things out? We can probably recover the password, but that will require direct access to the server."
"Why can't you just get the password from here?"
"(After some pause to think up a suitable reply) The purpose of a password is to prevent people who don't have it, from getting in. If we could get in without it, so could anyone. In which case there would be no point in having a password anyway."
"But I thought you were IT guys.."