When they left the boardroom so LAS, Brady and Nick could discuss who was going to be fired, Sugar himself referred to Susan as a mouse and Brady joked about how the boardroom was the mouse trap.

Then, when he got them back in he flew off the handle at Jim for calling Susan a mouse and how it was 'hardly complimentary'. Is LAS saying it's OK so long as you only say it behind her back like he did?

There is a significant difference between privately telling colleagues that you think someone may be a bit mousey and calling someone 'mouse' and 'Bambi' to in a crude attempt to put them down and deflect attention from the fact that they came up with three objections to the way the task was being conducted which, had they been listened to, could well have reversed the outcome.