If your called to do that, make sure you know what your doing, defensively and legally. Your life will be miserable if you don't.
This^^^^^^^^^
I don't carry at the "office" considering my office is a heavy equipment bay and my work space inside the engine bays and undercarriages. Carrying isn't exactly safe, comfortable, or feasible. However myself and several other coworkers keep a sidearm inside our toolboxes and usually are ready to start ww3 if we can get to the parking lot. This is especially true when working the weekends, as there may only be 2 or 3 of us in the shop, and there have been instances where unsavory individuals will just walk inside our gates and come walking into the shop like they own the place.