It is quite simple. You're grounded for a week and that's that!

Peter. What! Jennings! That black fish, with the very red and blue gills? / Sarah. Why Peter! Peter Perch! Shame on you, Peter! How dare you give the pious Mr. Simon such scaly names! You see then, I’m watching all your queer fish talk. Bless me! After a bit I shall be taken for a fisheress!

Coordinate term: DDT

He's working out with weights.