Its rather minor, but tonight when I was battling Boggs he used his loot (a purple crystal shard) to try to heal himself, but being undead it only aided in my defeat of him.

If boggs is supposed to be a mindless zombie I find it hard to see how he uses any item. However if he does retain some intelligence then he'd likely still believe that thing in his pocket still will help him and you'd get the rather amusing episode you just witnessed :)

It's only if he's a above average intelligence undead that he'd know what the purple thing is, and how it would affect himself in his current state.

I would tend to agree with chaosprism here.

BTW--Just the other night Boggs used a Healing Gland while I was fighting him!

This is such a minor bug, and it's actually really rather difficult to fix. I'm adding it to the list of known issues, but it's too low priority for me to work on at the moment.