and certainly you have your boss' permission and you reimburse your employer for the electricity (and wasted time fiddling with cgminer)?

it's really none of my business but just in case you weren't aware, a network admin can easily tell if there is any traffic to mining pools occurring on the network and to identify which systems are responsible, unless you use  a vpn.  as instances like this abc in australia recur. admins will be scrutinizing traffic more closely and refusing to pardon infractions where profit at the company's expense was the intent: http://delimiter.com.au/2012/05/21/the-abc-didnt-sack-bitcoin-miner