The mental health charity Mind has a campaign called Time To Challenge, and it's all about encouraging better management and increased awareness of mental health issues in the work place. As a Sad sufferer I feel that issues such as being able to use light therpay at work without embarrassment or fuss is crucial to being a happy and productive employee!
Here's a link to their mission to spread the word: http://www.time-to-change.org.uk/visualpledge