"Lane County detectives are continuing their investigation of a fatal hunting accident over the weekend. Neither hunter was wearing blaze orange, something that could have prevented the tragedy. Now 29-year-old [name removed] could face charges for shooting and killing his best friend...."
So, here's my advice: WEARING ORANGE HELPS. A lot. Most states require it, and those that do have reported significant decreases in hunting accidents since the rule went into effect.
Why can't hunters tell a human from a deer? I think it's because they (somenot all) see what they WANT to see. So do whatever you can to persuade them that what they are looking at is NOT a deer, bear, pheasant, or the like. I don't care if it does look dorkywear a vest.