"So, huh, don't panic..."

Those words. Percy's way of warning that he's just gotten into any kind of fight or training that has left him like a bleeding mess --- a bleeding mess you always seem to take care of, but that's what really close friendship and furiously flirting for years mean, right?

"I'm a little bruised." Percy says with a wide grin, as he finally comes into view.

A little bruised is an understatement.