Good stuff, except for the part that this thread started with the making fun of a colleague's company. This practice has to stop - putting other companies, their reputations and websites on the chopping block for laughs. I wonder if JPS has brought up my family's business for giggles...
For feeding chippers, I'd have to say that it's difficult to speculate while we're sitting at keyboards. The fact is that 99% of chippers in commercial tree care don't have winches or grapples. Also, the winch only gets it TO the feed area. Getting into the wheels is another step.
Hey, I've done a bunch of stupid things with chippers, and I will for the rest of my life. I'm learning, though. Todd's picture is a good example of what not to do. I like to stand to the side hanging on the hydraulics with one hand and pushing the log in with the other hand. Once a piece has the wheels open, lining piece after piece is a good way to ease the process. Nevertheless, there are times where you need to get behind a piece and push it in. In that case, I get a good footing, put my head to the side in case it flips up, and push the piece in. I do NOT get my head or body past the feed chute. Of course, my hands get past it, but my fingertips are still 3-4 feet from the wheels.
Maybe I'm doing something wrong, but I believe that case-by-case analysis is best. If you stop thinking and shut off your common sense, close calls and accidents will happen more often. Even if you do everything right, though, the drum could fly apart, using the rest of the chipper as shrapnel - killing you 12 hours before your life insurance goes through.
Nickrosis