I sent someone funds, and as I was clicking send, I noticed there was something on my pending transaction list i wanted to re-read, so i clicked "my account" again to see it. the funds i had just sent were there twice! I know i only clicked the button once because i had just done it. canceling one didnt effect the other.
so, possible that sending funds and then quickly clicking my account can cause a duplicate fund sendage. Ill have to try to repeat it later.