Mis-clicks happen to me from time to time. I play on a Mac with a trackpad that I have set to a very high sensitivity. When I drag my finger across the trackpad I sometimes press a little too hard as the cursor roams across the on screen buttons.
Sometimes it works in my favor - sometimes not. Speaks to the variability of poker, when you mistakenly play a hand (e.g., 72o) that you would never voluntarily play & make a killing. Or, fold AA pre-flop (which has happened to me), and lose out on a big opportunity. I guess it all averages out in the end.