I put a happy face emoticon in the comment line after stopping an acquisition run.
Of course, this was a cell that I left in the middle to go to CVS and pick up some stuff. It was still happy when I got back, holding current not more than 1 pA different. By that point though, I start to get the willies using any results. Too long whole-cell and weird stuff happens.
Come to think of it though, I bet if you trawled through my lab notebook, you'd find some "WTF" in there as well. Probably some much worse language to.
So, how many of you out there do the same?