A coworker of mine got caught posting a comment on Facebook about burning our place of work down. She never said the name of our work but everyone knows what she was talking about. She was suspended for 1 day and now me and my other coworkers are upset and uneasy working with an unstable individual. She is a gun enthusiast and mentality unstable. What legal rights do we have to present to human resources?. In our handbook it is a rule about posting matters dealing with work. Should I start a petition?