((hugs)) sometimes the good are let go simply to make the not so great top dogs feel better and boost their ego i am sure of it!

if the good guy is not happy about leaving they may have a case for unfair dismissal, but it could be that a good deal was made and leaving was in their best interest or simply the good guy got a better offer elsewhere or decided enough was enough and opted out!

I find smiling at everyone and being polite gets you a long way in befriending collegues and making life pleasent, even if you really think they are jerks, a smile costs nothing and uses less muscles than a scowl!