Most of us have done it - the site is a little slow, you/me/we are a little impatient- and click again - and there we are- twice/thrice and more.
I have noticed another little glitch- though I do not know if it is a site glitch or a 'me' glitch
Normally when a post is sent the reply box clears.
I have noticed previously and in my last post, that when the page comes back with your latest gem on display- the box has not cleared- the text is still there- a simple matter then, to click again, and Oops. So now i check my reply/submit box before moving on.