A1JIm,
I did teach shop, Jr High and High, not for years though. Speaking of kickback. One of my high school students forgot to not stand in line of the table saw blade, had a good size piece kick back and hit him right in his “Manhood.” Put him DOWN! Luckily, no permanent damage, but he never forgot that rule.
Another student had a 3/4" by 3/4" piece of Oak come off the saw and punch through a 1/2" Plywood tool rack, also knocking it back about two feet. It was free standing. 1/8" wide by 48" tall.
I’m ALWAYS watching the table saw, the blade, my hands, the wood, when I’m on the table saw.
Uses to tell my students, “If the wood gets out of your hands, DON’T try to catch it, let it go.” Student forgot, wood slipped while working the jointer; he grabbed for it and the board had forced the guard open. He lost the tips of three fingers.
Y’all be safe out there.
Keith "Shin" Schindler