[drewitgolf]

Not understanding the Geometrical Alignments of Down and Out and the Educated Hands that produce such Alignments gets my vote. I wish I had a dollar for every time I gave a lesson and asked the student how do you get a ball in the air? The response is usually, you got to get under it (well actually I do have a dollar for each time they say that). "Got to get under" it leads to Steering, as pointed out by Mike, and Streering gets its job done by Quitting, geometric disaster.