"So. How many breaks?" He always has to ask because- they'll always need them and being aware of limitations keeps people from getting killed. Once he explained that to them they stopped resenting the idea.

"Two!" Jensen offers, eyes flicking between Wash and York. "...should we take another lap, sirs?"

It is tempting. Hell he's still holding onto Wash's hand for a few seconds too long before he makes up his mind. He'll deal with this- this whatever it is later. Time to teach kids not to die.

"Pair up. Go over what we just learned. We'll do grappling tomorrow."