trying to stop a sawing off of an old hammer gun

[Jason]

All,

I recently joined the group and posted some pics of my first Parker. I find myself in search of more assistance. A friend of mine, after hearing about my recent purchase, told me of an old hammer double he picked up at an auction. It has "the continental" stamped on one side and PATENT JUNE 20 1886 on the other. It is also fairly engraved. I have not held the gun yet, just seen a few pics which I will post. He has been using the gun on his farm, so it functions.

Now to the important stuff. He confessed to me that he was in his shop the other day trying to determine how to cut the barrels short to have a home defense sawed off shotgun. I am trying to convince him not to by either buying or offering a trade of another double, that I would provide to cut and ready to use.

So I guess I'm looking for any ideas or options that anyone might have.

thanks
Jason