Very simple, give them a choice.
A I can go shoot that nice deer in the woods, gut it, skin it, cut it, and eat it.
B I can do the same to the offending Peta member.
A I can go fishing, catch a nice fat 3lb walley, fillet it out for supper
Or
B You can let me fillet out a Peta member and cook that for supper.
They either have the courage of their convictions or they don't.
And if they truly belive that strongly about it they should be willing to die to prove it.
Right?