Take a pen drive. Try to fit it to the USB port. It doesn’t fit. Turn it. Try to fit it again. It still doesn’t fit. Turn it again. Try to fit it once more. It doesn’t. Again turn it. No good this time too. Curse the pen drive, the USB port. Again turn the pen drive. It fits in this time. Think of yourself as an idiot. It was right the first. Continue working.
Pen drives are multi-dimensional evil objects.