Re: Q on minibuffer-message

[Richard M. Stallman]

        In that case, what I suggest is that you set up foo with an optional
        argument that is provided as t when it is called interactively.  And
        foo should only display its messages when that argument is t.

    That's just what I wanted to avoid having to do.

That's the right method, so I'm not interested in helping people avoid
it.