Oh, I realize that. My point isn't to say that all alums are accepting of the call and never get pushy, I was just trying to counter the "it will be the very rare phone call that Mom says, 'OKTHXBYE.'" comment because it does happen, at least in my own experience.
As I'm always so eager to point out no matter what the topic, some people (usually a very small percentage) are just nuts, and they aren't going to act right no matter what you do.
I suspect the vast majority of women called, although they may ask why, accept the response with dignity and good manners.
The ones who are going to pitch a fit are probably going to pitch it anyway; it's just a question of who initiates the call and how high up the organization chain they try to go.
(I don't expect any craziness ever to change the results of the chapter's decision, but I'm afraid there are always going to be a few wacky people who try to influence outcomes. We shouldn't let those jerks cause us to abandon a policy if it's a good one for other reasons.)