During my career as a Lineman I used one of those while tree trimming for line clearance and it was with no doubt the most dangerous piece of equipment I have ever used. Every branch (and some of those branches were like small trees) I threw in it was carefully scrutinized for anything that could hit me on the way in, grab my clothing, or hang up on the feed chute. Later it was changed out for a larger one with power feed rollers which was a heck of a lot nicer to use. I noticed a couple of guys on the crew were almost lackadaisical when using them even though they had been fully informed about the hazards and how to feed the beasts.
Watch this youtube video.... around 2:20 you'll see some pretty hairy stuff... the branch won't go in, its over his head and body, he keeps futsing with it and finally gets it to go... I wouldn't use this machine nor would I let an employee use it. Just too dangerous.
https://www.youtube.com/watch?v=cL0JkG41IRs
Here's a link to an OSHA page about woodchipper safety. Good read...
https://www.osha.gov/dts/shib/shib041608.html
Why are they calling the kid a Sub contractor?
Why does any company use sub-contractors? So they don't have to provide benefits and insurance....
Just found that kind of fishy. Kids first day on the job working with 2 solid type employee's and he is a sub. Not buying it Moss...