The following is not a personal attack on anybody, just an observation. No offence intended
It's amazing how many guys on here stress about injuries, or are in fact injured at the moment. I have been training weights since my teens, a few years mens health style, but lifting nonetheless. Yes I have had days where I have felt stiff or sore, or something has been sore for a week or two. But I have never had a serious injury caused directly by lifting weights.
I have always done bench and mp no matter what program I have been using. My left shoulder has been dislocated over a dozen times at footy, and my right 4 times. I have some funky shit going on in my left shoulder all day, it sounds like bubble wrap every time i move,yet I still get under the bar and do one of the presses every couple of days.
Stop worrying about injuries while sitting at your computer and just lift ffs.