Make that, Yay for literacy. RNVA's filings have been wall-to-wall Disclaimers and "Risk Factors." As I've often pointed out, if you read and understand the SEC filings you probably won't lose money in RNVA. Even their CPA seems to hate the company!
Simple rule: If you don't understand a stock, move along. There are 10,000 publicly held stocks. And diversification is always a good idea: Buffett has money in 90 firms... and he actually knows what he's doing.