Have to agree with the warning.
You want to try pressing some cast iron , cement or random steel parts with a high carbon content if you want Father Darwin to come a visiting you properly
As a Sparky with security background , I've had to wire up all sorts of , safety lights , keyed switches , micro switches , internal alarms on internal panels , surplus to our high local safety standards to try & stop or partly protect machine operators from doing insane things with press's , foam cutters , foam shredders , cement compression testing (all sorts) , steam boilers , exhaust fans , & sorts of other seriously nasty commercial stuff , that make for working horror movie props..
Yet both the machines & the operators still manage to find a new creative or unavoidable existing way to continue to draw blood from each other.
Hints & Options.
Use the right tool for the job
Work in a bomb disposal suit
***** Slap idiots around you who continually detonate stuff on machines
in your workshop , when circular motion goes straight line , ground zero
is often the safest place to be.
Beware of people who are missing fingers & are not Yakuza associated.
Let habitual idiots get a really good taste of Electricity , close , but not the
last resort to re educate them on workin safe

JB