WordPress.com Forums ? Support Hide Excerpt From Post Once Clicked

I am wondering if there is a way to make an excerpt for my site that will not appear in the actual post once the <more button> is clicked. If I use the <more> tag, it gives the look I want for the excerpt, but if I have leading text like this:

Why is that? Just click the “Read More” button below to find out.<!–more–>

I do not want that leading text to be visible in the actual post once a user clicks within the excerpt and is reading that post, as it no longer makes sense.

Not sure I am being clear, but let me know and I will try to clarify, if not.

The page I need help with: [log in to see the link]