It is not "preposterous" at all, as a matter of FACT, not all MSF-certified RC's are experts. I appreciate that these guys take the time to become instructors, and I applaud their attempts, but it simply is a FACT that not every body is doing the job they should be doing, or doing it right. I'm not condemning this particular instructor, he could just be having a bad day. On the other hand, Mrs6gun may have had her expectations too high. None of us know, none of us were there, and we've only heard one side of the story. Get the refund, take the class again from another instructor, and get on with you life. One instructor does not indicate all MSF instructors any more than one rider proves what all riders are like..