A bit of background: last year I was working in the job from hell. My boss and several of my colleagues were complete bullies and made my life miserable, I?m talking rude, personal attacks, talking over me at meetings, leaving me out of projects, changing my job description by the back door, reprimanding me over my ?attitude problem? if I dared to complain about my treatment, refusing requests for leave I was entitled to, inappropriately threatening to extend my probation period/ implying I would be sacked... the list goes on. As a result, I became depressed, my weight plummeted to about 7 stone and my hair started falling out.
Not a sob story, but just want people to see why I am having the feelings I am currently. I occasionally have nightmares where I am back in my old job. 
Even since I left, they have threatened to sue me over a fuck up with some overpaid expenses, which was their fault (and I have tried to pay back btw!) and bombarded me with emails relating to projects ? things that are covered in handover notes, but they can?t be bothered to read them when they could harass me instead. I have had to ask my IT admin to block/bounce their emails, because I started to feel physically sick when I saw one of their names pop up in my inbox.
OK, I sound like a complete pathetic victim up to this point, I?m sorry. I should say I have a great job now where everyone is lovely and things are brilliant. 
The thing is this. I work in a fairly niche industry (I have kind of changed careers now though and my role is completely different) and there has been a new innovation which will have major impact on everyone in the industry. In my new job, the creators of this innovation are one of my clients. Pending it?s launch, I am setting up lots of events/ meetings which involve getting industry bigwigs together; they give pre-launch input to the company, in return they get to be involved from an early stage, which will be lucrative for them/ gives them a head start on competitors.
So sorry for the massive preamble, but, would I be unreasonable to exclude my ex-boss and colleagues from having anything to do with it. Partly because I don?t want to be within a ten mile radius of them and partly for revenge purposes (I don?t want to put business their way).
Um, I?ve read it back and I?m probably a terrible, petty person. 