Balk from a Set or Stretch position

[Jerry]

Marty,
How do you "nail them for it"? Since the pitcher hasn't done anything that warrants a penalty; except for a "Don't do that".

Generally speaking, after a "warning" of "Don't do that"; if a pitcher does it again, he could/should be ejected. I haven't seen that happen . . . at any level of ball.

Jerry