My direct manager at a very profitable company shot a spring loaded toy at my face, many people witnessed him doing it over the period of a few weeks, but not the final incident, it occurred on my last day at work, after I had put in my two weeks. The company takes security very seriously and has cameras that cover every bit of the floor, and he sent me messages regarding what happened on our chat system and that should have been recorded as well. I can most likely get people to testify on my behalf do I have a case? I really don't want to see these people again, what do I stand to gain?