Thanks everyone.

They didn't document the meeting in which I apparently received my first warning but the one I just went to has been documented.

I'm not just going to walk out- but don't see much point in fighting their decisions at this stage. I just know now I don't want to work for a company like this for the pay I am on.

Regarding the business idea- I've ran it by some close people including my parents who own their own business so not new to the concept and they think it sounds good.

One thing I need to check is- 'employee raiding' (i.e stealing business concept and contacts for my own business) if my contract doesn't have a clause in preventing this, does anyone else know of any reason it would be illegal?