I remember, still with a chuckle,the 'one-man-band' I flew with years ago who, taxying on stand at Newcastle at 0200 in a 734, shut down both off stand and immediately reached up and threw off the taxy light - except it wasn't the taxy light. I wet myself laughing............
More haste, less speed!
Almost like the ones that want to shut down an engine taxying in when it's obvious the next turn on a small apron is going to be in the opposite direction!