Klaes blinks rapidly against the water that got in his eyes and draws in a breathe before doing as he's told and tightening his stomach muscles to draw himself up.

He is more successful on the second go around.

"Do not mistake this for criticism. But I don'know what floating on my back has to do with swimming. Aside from making certain it takes longer for me to drown."

And half smirks mischievously at his teacher.