"I'm willing to do it, though, to keep myself in condition.

Say once a week, except in really hot weather.

A little game like this tones up the liver so that I can almost feel it dancing inside of me." As he spoke, Dalzell clapped both hands to his lower left side and jumped up and down.
"You heathen, your liver isn't there," laughed the time-keeper.
"Isn't it ?" demanded Dan.

"Now, I'm ready to maintain, at all times, that I know more about my liver and its hanging-out place than anyone else possibly can." There was a note of half challenge in this, but the time-keeper merely laughed and turned away.

Members of the second class usually feel too grave and dignified to "take it out of" plebes.