I have misclicked before, while playing online. I'm sure we all have. When this happens, I think about how it would never happen in a face to face setting. Then, I think how funny/amusing it would look if it did.
For example, I accidentally mulliganed my hand when I meant to keep. I imagine myself saying, "Oh yes, this is good, I'll keep," as I immediately proceed shuffle my hand into my deck.
Anyone else have any noteworthy experiences like this?