Overly aggressive and unwanted hugging. Bad, but more awkward than jerky, really.
But ... who's the real jerk here? Maybe Thor and Ben Grimm might want to rethink their concept of personal space and try to be more in harmony with others; try giving just a little warmth to another person and/or that person's inside structural support.
Seth, though, what an ass. Walks into every room bellowing "So Speaks Seth!" Nobody wants to give him a hug -- and, frankly, those metal pants have ruined a good sofa or two.