Hi uranfeman,
I don't lecture to fitness people yet but do little seminars every now and then...1 hour talks, really basic - even then, in small groups with hands-on checking and proof of concept (gentle core contraction leads to more power and ability during global tasks), they still do stupid things out on the floor...
I do offer my time though - they pay for a consult to see me and they get one-on-one treatment for their own misguided ideas, i correct their problems and retrain faulty movement patterns and they get CPD for it!!
Good luck - if in sydney sometime, drop by!