All my horses, foals or not, get their Clinton Anderson groundwork from day 1, starting with desensitizing, and then the lunging, yielding, backing up, etc.
And don't panic, we don't lunge for HOURS until their leg fall off, We just do a circle at the walk or maybe the trot, just to get the idea and establish the "I can move your feet anywhere" aspect, and "I can move your forequarters and hindquarters anywhere I want." It's pretty amazing how fast they pick up on things.
Pssh.I didn't pick up the wrong lead
It's called a counter canter...
...A very advanced maneuver.