One of the most irritating things about my Blackberry (it's not a short list), was that unlike every other manufacturer on the planet they put the USB symbol on the bottom of the plug, and the Blackberry symbol on the top.
I forgot about this 'feature' regularly, due to using several chargers, most of which were generic and sensibly labelled. P1ssed me off each and every time I inspected the plug, selected the 'right' orientation, and tried/failed to insert.
So simple to avoid and, to me, it utterly typified the company's decline. I no longer have a Blackberry.