Dr Bob I knew you'd been there and done that. 600 does seem high for just a few days a year but we live in a overly sue crazy society. If you can't justify the expense for just that one show it does seem reasonable to opt out. And that would be a large expense against a meager income I agree. Pity you aren't a Snail Darter or Trans-whatever thus getting protected status in all things. The times we live in are not getting better in too many ways.