Prevent a Button From Being Double-Clicked?

Hi all,

We are using an on-premise 2013 solution and have added a custom button to a form (using Ribbon Workbench).  On click, this button calls a javascript function.

We now have a user who is double-clicking this button because they believe it is going to make things faster, but doing this is making the javascript fire twice.  We realize this is a user behaviour issue and are taking steps to address it, but we're also looking at a way to keep this from happening at a system level.

Has anybody encountered something similar and found a solution for it?

Thanks for any advise you can offer.