Because trusty metal tube is going to be so comforting to the girl.

Remy had just enough warning to be able to get his head out of the way of the grease, the suit jacket catching the worst of it. While Hiccup and Jennifer shout, he shucks it off and starts running after the girl. Which is probably not any more comforting, but they need answers.

At the end of the day, he's probably in slightly better shape than she is. He doesn't tackle her, though. The last thing they want is injuries. Instead, he reaches out, catching at her upper arm. "Slow down there, kiddo. We're new here."

He isn't very winded, but he will need a moment to get his breath back to say more than that.