Coach's BS

[oppool]

Adult slow-pitch

Batter hits ball to outfield F3 moves to 1st base and stands as runner rounds. I noticed F3 but on the play I had other base runners and didnt say anything to her at this time. I was returning to the plate the offensive coach come out yelling and demanding that I go down and tell F3 that she cant be standing on the base when there is no play someone is going to get hurt. I tell the coach to get back and his dugout and be quiet my job is to enforce the rules not teach the players how to play. He gets PO'D


Now I will say this if the coach had just come out and asked me adult like to speak to F3 about not standing on the bag when there wasnt a play I would not had a problem with that I would have found the appropiate time to talk to F3 and her coach about this

QUESTION: On a situation such as this when do you step in and do preventive umpiring and when do you just let it be and would you appease the offensive coach is this situation even though he was being a jerk and go ahead and take care of situation. I understand in younger age league's the smart thing to do is the preventive umping but in adults I dont feel that I am there to teach or babysit these supposed adults


Thanks for replies

Don