I disagree. OSHA will also show up if you have someone making a complaint, anonymous or otherwise. In most cases it will be an employee or ex-employee that you recently pissed off lol.
Work comp auditors have shown up to my site before but thats always gone well.
Who is a "work comp auditor" associated with? OSHA or state? Besides Iustinian, has anyone here actually been inspected by OSHA? It seems everyone's examples are second hand. I don't say that it doesn't happen it just seems to be a rare occurrence unless there is a fatality. I've been working in the Washington, DC area (the headquarters of OSHA) for 20 years and have never run into this issue.