Alternatively, borrow someone else's. Any computers which are publicly accessible need to be locked down. This means that the case is padlocked closed and both the case and the monitor are padlocked to the table. You should wipe off the surface you are sticking it to with an alcohol wipe and let it dry before sticking it on. Make sure you press hard for a good seal.
Padlocks are in the parts drawers above the vise in the shop.
There are different padlocks for different uses, so ask which one you should be using. UPS Computers and monitors should be plugged in to a UPS, not a line conditioner or power strip alone. Some line conditioners look amazingly like UPS's, so check to be sure. When you add something to a UPS you need to check if it can support everything plugged into it. This area is way to big to go into here.