Log Off / Screen Saver Security PAIN

If a network is set so if there is inactivity for more than 10 minutes, it logs you off the network. It is set and locked by the lan administrators. Is there a way to work around this with some kind of software such as something you could turn on and off as needed? I vaguely remember something from long ago about a little ping program in IRC. I totally agree security is great and it aids in tracking productivity(?) but sometimes this type of setting is more of a nuisance and a hindrance than a help when you're working on something tricky and you are interrupted by a call or a driveby chatty kathy. I was thinking of getting one of those little toys that jump up and down and stick it on the keyboard..........!
:hyper

Bitzy

 

right click on the desktop and go to properties, then click the screen saver tab & uncheck "On resume, password protect".. if you have rights to it.