Teachers: a lot more than you think. My wife has had threats to go to the schoolboard for retarded stuff (crazy cheerleading parents). And we know a couple that

Teachers: a lot more than you think. My wife has had threats to go to the schoolboard for retarded stuff (crazy cheerleading parents). And we know a couple that needed short-term legal counsel. For TA's, I could imagine problems with patents, pharma, and medical. I guess you could rig up the equivalent of malpractice insurance for certain fields to get around the union problem, but the current solution is the best available.