Most of the time, a "Computer Lab" is otherwise known as "The bowels of Hell." Within the walls of a computer lab, one will find a ridiculous number of complete idiots using CD-ROM trays as cupholders and sticking the wrong bits in the wrong places, sometimes with lethal results. Computer Labs must constantly be patrolled by a person secure in their knowledge of these monstrous beasts, referred to with the glyph 'PC.' Sometimes the labs are quiet and there are only a couple of twits who are too timid to scream out "Excuse me, I need help!!" It is well known that these people generate their own SEP fields. It is in these brief moments of bliss that the patroller utilizes company time to surf the web for naughty pictures and post pointless contributions to H2G2.