This is part of my job, moving around equipment in clients' offices. I do it all of the time. But, this was a printer that was very heavy and I didn't realizes exactly how heavy it was until I lifted it. It looked about the same size as our printers, but when I picked it up it was probably 2 1/2 times as heavy. I felt a pop. Luckily I didn't drop the thing and hurt myself even more. Well, so far the healing has been good. I'm able to stand up straight and flexibility is slowly coming back. Just do me a favor and pray for a speedy recovery so I can get back to work and get back to training at full strength. Thanks.