Users submit forms on my site.

Some of those form submissions register once (as desired) and everything is fine.

However, every once in a while, I receive a submission that seems to clone itself and submit itself like 8 times. This seems like the result of something like a user browser timeout, or something on the form-user side of the picture, since it's not happening for every user.

I haven't been able to isolate the browser used for these submissions.

Is this something I have any control over? Is there any way to build in some sort of "wait for browser" delay for these errant submissions? I'm just shooting in the dark.

Thanks