I'm sure this has happened to all of us at some time or other. I can tell as soon as I get down on the shot because nothing feels as good as my old Betsy.
Here's a little story of something that can happen when someone picks up the wrong cue. This happened at Hard Times a couple of weeks ago. I was playing a match with Darlene Stensen. It was hill hill. Her break cue looks very much like my playing cue, black ebony with some ivory. It's her shot and she can't reach it so she goes for a portable bridge that she carries with her in her case and attachés it to what she thought was her break cue.
Well she picks up my cue mistaking it for her break cue and attachés the bridge to it and gets ready to lay it down on the table. The bridge falls off my cue shaft and lands on top of the cue ball because my shaft is 12mm as opposed to her shaft on her break cue being a bit larger. She picks up the cue ball and says here bih. Of course I felt sorry for her for a moment and I contemplated into giving it back to her to shoot again. But thought better of it because this lady was playing perfect pool against me. Besides I felt that she would have been insulted if I tried to give it back to her.
I shot and didn't get out and left her with a difficult shot on the seven which she nailed and and went around the table for the eight but got hooked with the nine by 1/8 of an inch, she kicked and hit it and left me no shot so I played a safe, she kicked and missed hitting the ball then I won. I was extremely fortunate to have won that match.