[Zoggite]

I have just been back to the PDA website, and read this:
"In one of the leading cases a manager shouted to an employee 'You can't do your bloody job anyway', within earshot of other employees. This was held to have so seriously undermined the implied duty of mutual trust that the employee was entitled to claim constructive dismissal."
And a lot more interesting advice, too!
So if your friend hasn't joined yet, tell her to do so ASAP!