Still using horse laxative mineral oil here. I work outside so I can stand well back from the drop saw when it's working. I do get splattered but this stuff is supposed to be pretty safe to get on your skin. If it's approved for use with livestock, it's usually alright (generally speaking. I'm talking soap, mineral oil, etc. not the hormones/supplements. Don't touch those.) There isn't any way to do anything with livestock without risking getting covered in whatever you're working with. That said, there are new recommendations that the vapor not be breathed if at all possible. The quantity I would be exposed to, standing 10 feet away outside, is probably nil, but if I get interior space I'll be making one of those fancy shower curtain surrounds real quick.
Question tho- cross-contamination between saw and cabbing machine? I get trace amounts of oil in my cabbing water sometimes. Is this to be avoided at all costs, or just an unavoidable part of the process? Is there any risk to the wheels and machine from getting oil in the water on occasion?