> Any suggestions how I can get back at the bastard?

I think most of us have felt that way at times but the best thing is put it
down to experience & avoid similar in future. Revenge isn't the way to go as
it brings you down to his level & besides that mobile calls are traceable.

Maybe you should try to talk with him & put the bitterness to rest? All of
us have different perspectives on things, maybe to him it was trivial but
obviously not to you!
>