Sarutobi beckoned to Konohamaru. "Grandson... come here. I have something to tell you."
Konohamaru's eyes shined. "What is it, Grandfather?" he asked.
"Remember," Sarutobi wheezed. "Money isn't important; you should watch your health." His chest heaved as he fell into a coughing fit.
"YES, SIR!" Konohamaru promised tearfully. "I won't let you down, Grandpa!"
A week later...
Konohamaru stepped down from the treadmill and grabbed an apple. Gee, he thought. Watching my health sure is hard. But I can't let Grandfather down!
"If I cannot run ten more miles, I will do 400 more jumping jacks!" Konohamaru shouted, in a way that would've brought tears to Rock Lee's eyes. His piggy bank lay discarded in a dank corner of his closet. After all, he was too busy watching his health to watch his money.
Sarutobi snickered as he crept into his grandson's room. "Sucker!" he crowed, sneaking out the window with the piggy bank under his arm.