Picked up this jointer recently at an estate sale. Don't have a jointer so I figured it was something to mess with and give it a whirl. Reviews aren't the hottest on this benchtop model but it didn't cost me much. Figuring whomever had it first would've worked out any bugs. My question is, it didn't come with the guard that goes over the top spinning head, so other than just not sticking my fingers in it, anything else I need to be aware of? I tried looking online and it seems that part is discontinued and no place had it for sale that I could buy.