@TheDemonLord What people tend to forget is that it's a small, small world. If you plan to continue working in the same area doing something like this has a high chance to backfire in the future as matt freake so nicely demonstrates.

Even if you want to argue that it's a "legally grey area", getting yourself into a morally and legally dubious situation with clear downside just out of pettiness is just stupid (understandable yes, but still stupid).