Batter steps out during pitch
What's the call on if a batter steps out of the box during the pitch or even before the ball even gets to home plate?
Rules mention the local option if they step out in between pitches and can warn and call a strike.
Example being a kid seemingly terrified to be in the box and steps out before the ball even gets close to the plate, pitch was on the outside. Borderline ball/strike, but no where near the batter who isn't in the box.
Just call it as is? Does the zone get any bigger or you attempt to still call it? You don't have as good of a reference to what their stance is when they aren't standing in the box any more.
I'm also aware of if a batter has a foot completely out of the box and hits the ball it's an out. So I'm watching the kid step out to know if that rule applies it then also makes it harder to follow how close the pitch is on the opposite side at the same time.
Thoughts?