I know all to well the kind of scum that haunt secluded spots and act predatory when they think they have someone poor guy outnumbered or outmuscled. So yes, I carry, but I keep it concealed. No sense in them playing nice then running back to their rig to raise the ante. I'd rather them show their stripes before the cards are laid down.
Best plan I have is to take their keys and cellphones, toss em in the river, and beat feet.