"On any second quick in the Foxtrot. dont forget to hit that crotchet right on the black spot."
WRONG. See here:
https://www.ballroomdancers.com/Message_Board/view_messages.asp?MsgID=23818
"Exactly were are you when you go diagnal to the wall for a Natural Turn. Your not one of those who does a Reverse Turn and Three Step and heads straight across everybody coming down behind you. "
If you knew anything about the flow of the dances, you'd know they generally move on diagonals. Extended movement straight down the LOD happens near the center and near the wall, in between the movement is generally diagonal. Look at the classic figures with their 3/8 turns (or in some foxtrot cases, 1/8 change of direction) and this will become clear.
"Heaven forbid.Try that with 20 couples on the floor. You'd get flattened."
Hardly, diagonal movements are the norm, and what those behind you will be expecting if they have any real experience (and those without real experience won't be catching up to real dancers anyway)
"Hasn't it entered your head that why the Three Step has a curve in it"
Check your book: "The three step may also be danced DW. When danced in this direction it may be ended facing DW or curved to L to end LOD"
"Just to correct you again. The first note (a) There is nothing there about heading diagnal to the wall."
Oops, you really stepped in it that time. Open up your book, and you'll see that the first note says:
"Alignment. When the Natural Turn is commenced DW..."
You might also want to look here
https://www.ballroomdancers.com/Dances/breakdown.asp?Dance=FOX&StepNum=193&Part=M
and here
https://www.ballroomdancers.com/Dances/media.asp?Dance=FOX&StepNum=193
Where you will see the common version commenced moving DW with 3/8 turn on the first three steps.