I knew what needed to be done, but, in the end, laziness toppled sense and I proceeded to (very carefully) disregard everything I know about lifting things: Bend your knees, keep your back straight, etc.
I didn't feel a thing when it happened. In fact, I thought to myself, "Hey, this is easier than I imagined."
It wasn't until I had the PSB SubSeries 5i out of its box and on the floor in front of me that, with an "Aw crap" and an "Oh that…