Never owned pigs but have hunted wild hogs. They are NOT to be trusted or taken for granted. I have to agree with Jan and the others. You are placing your life at serious risk that only increases over time. Even if you are not in the pen, should he get a hold of your arm, trust me, he IS or soon will be quite strong enough to pull you right over that fence! The alternative being you give up your hand/arm/foot/leg/whatever and remain outside. Freezer camp must ALWAYS be an option when dealing with livestock. These are not house pets. The doctor's bills will be a much bigger investment... justsayin. At the least, separate him and place behind very strong/secure containment.