Of course, as soon as Joker puts the gun away the guy gets bold again. He makes to swing for Joker's head, and Hythlodaeus grabs the man's arm in a panic, shouting.

"Watch out!"

If nothing else, him grabbing the man's arm slows him down, but it also gives Joker the perfect opportunity to react too. Not that Hythlodaeus really knows what might happen next, he just doesn't want to see his new friend hurt by some brute with bad manners! Of course, Hythlodaeus isn't really trained in hand to hand combat outside of some sparring with Chris, so if the man swings for him next he's in trouble. He doesn't really want to use magic to retaliate, because that's... kind of overkill.