I guess one could be harsh in making the determination of whether to drop money on a seminar being taught by Howard, Heavy, Little Joe, Dominator et al... "Let me see your casino profit/loss statement." They may object or demure. It's a start. Of course that assumes they have a player card or have been seen getting comps...then at least you know they are in the system. In my list of priorities....as to "qualified", that is certainly up there. I can easily find Howard Lederer's winnings before I take a poker lesson.