No subject

Sun and the Wind[1] with Sysadmins, or anyone for that matter. Be
aggressive in your manner, you'll not easily get a cooperative response,
be understanding

Teaching people lessons is often tempting but it often makes your
primary objective - getting xyz done, less likely.

The end user who gives them a crate of beer for all the help and
assistance they've given him over the semester probably stands a much
greater chance of establishing cooperation than someone who writes
emails to them telling them they are wrong.

Well, anyway, that's my opinion anyway.

Tim

[1] http://www.rickwalton.com/folktale/bryant21.htm