Jack didn't really know what to make of the annoyance in the man's voice either. It wasn't as thought they'd asked for help. All the same, he was relieved when the people were gone.
"Um, I think we're just fine. Thank you. You did... you did send them home, right?"
If this man had somehow vaporized those people, they were going to have issues. Jack wasn't exactly sure what he could do against someone who could just wave a hand and make people disappear, but he wasn't going to lie down and take that either.