We did both of those. We took screen caps of our managers -- the issue with that was that there was a noticeable pause when you were snapping and we were afrai

We did both of those. We took screen caps of our managers -- the issue with that was that there was a noticeable pause when you were snapping and we were afraid of getting caught. In terms of audio there was a desk analyst on the MBS trading desk who wrote a script that would play a clip of someone in a thick accent screaming 'You are a stupid man!' on the targeted machine. The traders and analysts did it to each other for a while. When that got boring and they modified the script to play it on all the machines on the MBS trdaing desk, repeatedly. When the head of mortgage research would stop by to speak to one of the traders, someone would quite subtly run the script and every ones machine would start barking 'You are a stupid man!' Weirdly it never occurred to us to use the microphone.