Call me! For anything!
Someone comes to the office to fix a printer but you can't get a hold of the person who logged the ticket? Don't worry, call me!
Someone is here to pick up a computer but you can't contact the person who submitted the pickup? Don't worry, call me!
Someone is here for an interview, meeting, or training but can't contact the person who asked them to come here? Don't worry, call me!
UPS is here to pick up a package (well, Fed Ex never is) and they're not here? Don't worry, call me!
Yes! Call your IT guy, even if he has NOTHING to do with the above mentioned scenarios.
Yes, the little known secret is that your local IT guys are actually omnipotent! Even if we've never dealt with something or someone we still know everything there is to know about it!
... as in "Ifn thet dawg comes at me, Ima gonna shutz ma panz!"