Not trying to be a smart a** at all, but does it apply also if you are training some catch dog pups, and the hog is hobbled?
What you should ask yourself is this...... Do you want to defend yourself against someone who says it is?
I would venture to guess that none of us are actually qualified to interpret the law but any one of us could become the precedent. I really don't want to be that guy so, better safe than sorry.
Steve