"You mean to tell me if you treat a wound, it heals up better? Huh. Learn something new every day."

Yes. He's giving him guff about it. Because often times Jacob will just swan off and leave things as they are, rather than trying to take care of them in progress. Most of the time it's fine, but...it's worrisome. He worries.

Surely he can't be faulted for that.