Obtain Roshi's necklace

"Wait here, Turtle," Goku told him, "I'll be right back."

Goku headed into the bright pink house, peering through the screen door first, scouting out the inside before committing to any sort of plan. Master Roshi's exercise program was on, perfect! While that was on, the dirty old man didn't pay much attention to anything and Goku could get him to agree to just about anything so long as it let Roshi keep his face glued to the television screen as women in leotards and leg warmers performed repetitive movements on camera. There was a point in time when Goku might have joined him, but then the young man learned about the internet and all the wonders it held. Poor Roshi was so old, computers might as well have been esoteric magic to him. Then again, if Roshi knew how to work a computer, he'd never have time to do Goku's second-most favorite activity in the world: martial arts training.

"Hey, Roshi," Goku greeted the hermit as he walked in, "Turtle's back."

"Mm-hmm," Roshi said, clearly distracted by the women on screen. Everything according to plan so far.

"He said someone had to help him back to the ocean," Goku acting like he was walking over to the fridge, but really he was looking for Roshi's necklace. Sometimes Roshi would be wearing it, but mostly he left it lying around the house. If Goku was lucky, this would be one of those times.