Batter Hitting Catcher on Backswing-Repeatedly

[SAump]

Originally Posted by easygoer

Is there a rule that prohibits the batter from intentionally hitting the catcher with his bat? How do you know it is intentional?? When they hit the catcher five times in a row with a swing that in no way resembles a warm-up swing. They did it last year as well, same team; it never happens against any other teams. What’s the rule?
Easygoer

1st is catcher's interference. Award 1st base. Move the catcher further off the plate.
2nd is warn batter after 1st contact, and eject after 2nd, 3rd, 4th and 5th contact.